diff --git a/data.ds2011-1/questions.json b/data.ds2011-1/questions.json
new file mode 100644
index 0000000..cf696dc
--- /dev/null
+++ b/data.ds2011-1/questions.json
@@ -0,0 +1,192 @@
+[
+  {
+    "tier": 100, 
+    "text": "Wie war das Motto der Datenspuren 2010?", 
+    "answers": [
+      {
+        "text": "Mind the gap?", 
+        "right": true
+      }, 
+      {
+        "text": "Heiter bis wolkig"
+      }, 
+      {
+        "text": "Hands off, privacy on"
+      }, 
+      {
+        "text": "Privatsph\u00e4re war gestern"
+      }
+    ]
+  }, 
+  {
+    "tier": 150, 
+    "text": "Wie werden die Nutzer in Facebooks Datenbank genannt?", 
+    "answers": [
+      {
+        "text": "Hostage"
+      }, 
+      {
+        "text": "Victims"
+      }, 
+      {
+        "text": "Target", 
+        "right": true
+      }, 
+      {
+        "text": "Product"
+      }
+    ]
+  }, 
+  {
+    "tier": 225, 
+    "text": "Wie hei\u00dft der urheberrechtsverletzende Politiker der 2-Strikes vorschl\u00e4gt?", 
+    "answers": [
+      {
+        "text": "Volker Kauder"
+      }, 
+      {
+        "text": "Siegfried Kauder", 
+        "right": true
+      }, 
+      {
+        "text": "Welsch Kauder"
+      }, 
+      {
+        "text": "Dieter Kauder"
+      }
+    ]
+  }, 
+  {
+    "tier": 337, 
+    "text": "Wozu f\u00fchren rechtsweglose Zensurabmahnungen (in Italien)?", 
+    "answers": [
+      {
+        "text": "Schlie\u00dfung der Wikipedia", 
+        "right": true
+      }, 
+      {
+        "text": "Kinderporno -250%"
+      }, 
+      {
+        "text": "Berlusconi im Amt fest tackern"
+      }, 
+      {
+        "text": "Anonymous behindern"
+      }
+    ]
+  }, 
+  {
+    "tier": 506, 
+    "text": "Wie viele Verbindungsdatens\u00e4tze wurden druch die Polizei w\u00e4hrend der Anti-Nazi Demonstrationen im Februar 2011 in Dresden abgefragt?", 
+    "answers": [
+      {
+        "text": "ca 12"
+      }, 
+      {
+        "text": "ca. 100"
+      }, 
+      {
+        "text": "ca. 5.000"
+      }, 
+      {
+        "text": "mehr als 1.000.000", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 759, 
+    "text": "Was verlangte Google als es die Maildaten von Jacob Applebaum ausgeliefert hat?", 
+    "answers": [
+      {
+        "text": "Nichts", 
+        "right": true
+      }, 
+      {
+        "text": "Gerichtsbeschluss"
+      }, 
+      {
+        "text": "hat dagegen geklagt"
+      }, 
+      {
+        "text": "Sagte, er hat hier keinen Account"
+      }
+    ]
+  }, 
+  {
+    "tier": 1139, 
+    "text": "Where are among other places mifare cards used that got just hacked?", 
+    "answers": [
+      {
+        "text": "NASA", 
+        "right": true
+      }, 
+      {
+        "text": "NSA"
+      }, 
+      {
+        "text": "Mossad HQ"
+      }, 
+      {
+        "text": "Bundestag"
+      }
+    ]
+  }, 
+  {
+    "tier": 1709, 
+    "text": "What detail the Homeland Security software FAST doesn't take into account to compute potential criminals?", 
+    "answers": [
+      {
+        "text": "ethnische Zugeh\u00f6rigkeit"
+      }, 
+      {
+        "text": "K\u00f6rperma\u00dfe"
+      }, 
+      {
+        "text": "Abstammung"
+      }, 
+      {
+        "text": "Haarfarbe", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 2563, 
+    "text": "Who controls american drones in Afghanistan part time?", 
+    "answers": [
+      {
+        "text": "Virueses", 
+        "right": true
+      }, 
+      {
+        "text": "Chinese Hackers"
+      }, 
+      {
+        "text": "NSA"
+      }, 
+      {
+        "text": "Operators"
+      }
+    ]
+  }, 
+  {
+    "tier": 3844, 
+    "text": "Wie kompatibel ist Libre Office zu MS Office?", 
+    "answers": [
+      {
+        "text": "It can run it's virueses", 
+        "right": true
+      }, 
+      {
+        "text": "It can import MS Word"
+      }, 
+      {
+        "text": "It has the same UI"
+      }, 
+      {
+        "text": "Hat das selbe Plugin-API"
+      }
+    ]
+  }
+]
\ No newline at end of file
diff --git a/data.ds2011-2/questions.json b/data.ds2011-2/questions.json
new file mode 100644
index 0000000..8fe56c8
--- /dev/null
+++ b/data.ds2011-2/questions.json
@@ -0,0 +1,192 @@
+[
+  {
+    "tier": 100, 
+    "text": "Welches Land hat ACTA noch nicht unterzeichnet?", 
+    "answers": [
+      {
+        "text": "Australien"
+      }, 
+      {
+        "text": "Japan"
+      }, 
+      {
+        "text": "Kanada"
+      }, 
+      {
+        "text": "Deutschland", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 150, 
+    "text": "Mit welchen Feature hat Apple die iPhone Fotoapp beworben in Bezug auf afrikanische M\u00e4dchen?", 
+    "answers": [
+      {
+        "text": "grant 'em money"
+      }, 
+      {
+        "text": "Gesichtserkennung"
+      }, 
+      {
+        "text": "Beschneidung", 
+        "right": true
+      }, 
+      {
+        "text": "Farbkorrektur"
+      }
+    ]
+  }, 
+  {
+    "tier": 225, 
+    "text": "How much money makes MS by patent bribing Android manufactures a year?", 
+    "answers": [
+      {
+        "text": "1 Mrd USD"
+      }, 
+      {
+        "text": " 100 Mio USD"
+      }, 
+      {
+        "text": " 500 Mio USD", 
+        "right": true
+      }, 
+      {
+        "text": " 50 Mio"
+      }
+    ]
+  }, 
+  {
+    "tier": 337, 
+    "text": "Warum pr\u00fcfen die Musikpiraten die GEMA zu verklagen?", 
+    "answers": [
+      {
+        "text": "wollen Geld f\u00fcr freie Musik", 
+        "right": true
+      }, 
+      {
+        "text": "wollen Geld f\u00fcr Samples"
+      }, 
+      {
+        "text": "Ver\u00f6ffentlichungsverbot von CC Musik"
+      }, 
+      {
+        "text": "Video auf Youtube gesperrt"
+      }
+    ]
+  }, 
+  {
+    "tier": 506, 
+    "text": "Which company makes S/W that could be rebooted by a IPv6 ping in 2011?", 
+    "answers": [
+      {
+        "text": "Microsoft"
+      }, 
+      {
+        "text": "Linux"
+      }, 
+      {
+        "text": "DigiTaks"
+      }, 
+      {
+        "text": "Cisco", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 759, 
+    "text": "Was macht Facebook wenn man sich ausloggt?", 
+    "answers": [
+      {
+        "text": "del session cookies"
+      }, 
+      {
+        "text": "del some session cookies", 
+        "right": true
+      }, 
+      {
+        "text": "clears browser cache"
+      }, 
+      {
+        "text": "black lists user"
+      }
+    ]
+  }, 
+  {
+    "tier": 1139, 
+    "text": "How treats the CIA the Earth climate change?", 
+    "answers": [
+      {
+        "text": "denies it"
+      }, 
+      {
+        "text": "lies about it"
+      }, 
+      {
+        "text": "makes it a secret", 
+        "right": true
+      }, 
+      {
+        "text": "tries to save the planet"
+      }
+    ]
+  }, 
+  {
+    "tier": 1709, 
+    "text": "Wie viel hat der vormalige PC Hersteller HP f\u00fcr CEO Abfindungen seit 2005 gezehlt? In Mio USD", 
+    "answers": [
+      {
+        "text": "10"
+      }, 
+      {
+        "text": "5"
+      }, 
+      {
+        "text": "80", 
+        "right": true
+      }, 
+      {
+        "text": "50"
+      }
+    ]
+  }, 
+  {
+    "tier": 2563, 
+    "text": "Welches Protokoll diente zur SCADA Triebwerksteuerungsbeeinflussung einer Boing 747?", 
+    "answers": [
+      {
+        "text": "SSH"
+      }, 
+      {
+        "text": "SSL"
+      }, 
+      {
+        "text": "Proprit\u00e4r"
+      }, 
+      {
+        "text": "Telnet", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 3844, 
+    "text": "What organisation did the former MS exec Pamela Passman lead after she left MS?", 
+    "answers": [
+      {
+        "text": "BSA"
+      }, 
+      {
+        "text": "Nokia"
+      }, 
+      {
+        "text": "SCADA org"
+      }, 
+      {
+        "text": "Lobby", 
+        "right": true
+      }
+    ]
+  }
+]
\ No newline at end of file
diff --git a/data.ds2011-3/questions.json b/data.ds2011-3/questions.json
new file mode 100644
index 0000000..3a0b67d
--- /dev/null
+++ b/data.ds2011-3/questions.json
@@ -0,0 +1,192 @@
+[
+  {
+    "tier": 100, 
+    "text": "Which company did not pay MS for Android/Linux?", 
+    "answers": [
+      {
+        "text": "HTC"
+      }, 
+      {
+        "text": "Motorola", 
+        "right": true
+      }, 
+      {
+        "text": "Samsung"
+      }, 
+      {
+        "text": "Casio"
+      }
+    ]
+  }, 
+  {
+    "tier": 150, 
+    "text": "What made Win not vulnerable/exploitable in 2011?", 
+    "answers": [
+      {
+        "text": "TXT file"
+      }, 
+      {
+        "text": "Ping"
+      }, 
+      {
+        "text": "Flash"
+      }, 
+      {
+        "text": "Power Button", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 225, 
+    "text": "What was the reason for human loss at Pukkelpop music festival in Belgium?", 
+    "answers": [
+      {
+        "text": "Wind"
+      }, 
+      {
+        "text": "Rain"
+      }, 
+      {
+        "text": "File sharing", 
+        "right": true
+      }, 
+      {
+        "text": "St\u00fcmperei"
+      }
+    ]
+  }, 
+  {
+    "tier": 337, 
+    "text": "Aus wie vielen Geschlechtern kann man in Australien w\u00e4hlen um das im Pass eintragen zu lassen?", 
+    "answers": [
+      {
+        "text": "0"
+      }, 
+      {
+        "text": "1"
+      }, 
+      {
+        "text": "2"
+      }, 
+      {
+        "text": "3", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 506, 
+    "text": "Which country does not have a net neutrality law?", 
+    "answers": [
+      {
+        "text": "Belgium"
+      }, 
+      {
+        "text": "Netherlands"
+      }, 
+      {
+        "text": "Chile"
+      }, 
+      {
+        "text": "USA", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 759, 
+    "text": "How many percent of all US Americans are employed by the Department of Defense?", 
+    "answers": [
+      {
+        "text": "0.1"
+      }, 
+      {
+        "text": "0.5"
+      }, 
+      {
+        "text": "1", 
+        "right": true
+      }, 
+      {
+        "text": "5"
+      }
+    ]
+  }, 
+  {
+    "tier": 1139, 
+    "text": "What is the gain in round trip time by the new $300 EU-US cable (Erstes in 10 Jahren)?", 
+    "answers": [
+      {
+        "text": "6s"
+      }, 
+      {
+        "text": "0.6s"
+      }, 
+      {
+        "text": "0.06s"
+      }, 
+      {
+        "text": "0.006s", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 1709, 
+    "text": "Welches Programm wurde nicht aus dem Apple App Store gel\u00f6scht?", 
+    "answers": [
+      {
+        "text": "Phone Stroy"
+      }, 
+      {
+        "text": "Smuggle Truck"
+      }, 
+      {
+        "text": "Cure-Gay", 
+        "right": true
+      }, 
+      {
+        "text": "Conterfai Lugaru"
+      }
+    ]
+  }, 
+  {
+    "tier": 2563, 
+    "text": "Why does SPD Sebastian Edathy wants the data retention law?", 
+    "answers": [
+      {
+        "text": "Catch terrorists"
+      }, 
+      {
+        "text": "Catch file sharers"
+      }, 
+      {
+        "text": "protect democracy"
+      }, 
+      {
+        "text": "find out who sent him that plastic pussy", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 3844, 
+    "text": "What was not patented to our knowledge?", 
+    "answers": [
+      {
+        "text": "Snowman", 
+        "right": true
+      }, 
+      {
+        "text": "Snowball"
+      }, 
+      {
+        "text": "Patenting"
+      }, 
+      {
+        "text": "Geotracking"
+      }
+    ]
+  }
+]
\ No newline at end of file
diff --git a/data.ds2011-4/questions.json b/data.ds2011-4/questions.json
new file mode 100644
index 0000000..cdc3784
--- /dev/null
+++ b/data.ds2011-4/questions.json
@@ -0,0 +1,230 @@
+[
+  {
+    "tier": 100, 
+    "text": "Was durften angeklagte Anonymous Aktivisten nicht mehr?", 
+    "answers": [
+      {
+        "text": "DoS-Angriffe"
+      }, 
+      {
+        "text": "Visa nutzen"
+      }, 
+      {
+        "text": "anonym surfen", 
+        "right": true
+      }, 
+      {
+        "text": "Telefonieren"
+      }
+    ]
+  }, 
+  {
+    "tier": 150, 
+    "text": "Welches Urheberrecht wurde nicht durch die USA vorgeschrieben?", 
+    "answers": [
+      {
+        "text": "Kanada"
+      }, 
+      {
+        "text": "Russland", 
+        "right": true
+      }, 
+      {
+        "text": "Spanien"
+      }, 
+      {
+        "text": "Schweden"
+      }
+    ]
+  }, 
+  {
+    "tier": 225, 
+    "text": "Who took longest to recover from Hack?", 
+    "answers": [
+      {
+        "text": "kernel.org"
+      }, 
+      {
+        "text": "Sony", 
+        "right": true
+      }, 
+      {
+        "text": "Wine HQ"
+      }, 
+      {
+        "text": "The Register"
+      }
+    ]
+  }, 
+  {
+    "tier": 337, 
+    "text": "What is the goal of a new party in Switzerland?", 
+    "answers": [
+      {
+        "text": "Make all voting on-line"
+      }, 
+      {
+        "text": "ban Powerpoint", 
+        "right": true
+      }, 
+      {
+        "text": "ban all on-line voting"
+      }, 
+      {
+        "text": "allow all computers in parlament"
+      }
+    ]
+  }, 
+  {
+    "tier": 506, 
+    "text": "How did attackers gain access to RSA internal network?", 
+    "answers": [
+      {
+        "text": "Breaking RSA tokens"
+      }, 
+      {
+        "text": "MIM of RSA token authentication"
+      }, 
+      {
+        "text": "SQL injection"
+      }, 
+      {
+        "text": "Excel trojan", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 759, 
+    "text": "What animal did the US army use in Western Berlin for intruder alarm?", 
+    "answers": [
+      {
+        "text": "goose", 
+        "right": true
+      }, 
+      {
+        "text": "sheep"
+      }, 
+      {
+        "text": "chicken"
+      }, 
+      {
+        "text": "dog"
+      }
+    ]
+  }, 
+  {
+    "tier": 1139, 
+    "text": "To gather the 1st million patents took 80 years. How long does it take today?", 
+    "answers": [
+      {
+        "text": "6m"
+      }, 
+      {
+        "text": "1y"
+      }, 
+      {
+        "text": "5y", 
+        "right": true
+      }, 
+      {
+        "text": "10y"
+      }
+    ]
+  }, 
+  {
+    "tier": 1709, 
+    "text": "What did the camp not do?", 
+    "answers": [
+      {
+        "text": "save a life"
+      }, 
+      {
+        "text": "bring together great folks"
+      }, 
+      {
+        "text": "fun"
+      }, 
+      {
+        "text": "hack the weather", 
+        "right": true
+      }
+    ]
+  }, 
+  {
+    "tier": 2563, 
+    "text": "Who was awarded the Pwnie award this year?", 
+    "answers": [
+      {
+        "text": "Sony", 
+        "right": true
+      }, 
+      {
+        "text": "Sony"
+      }, 
+      {
+        "text": "Sony"
+      }, 
+      {
+        "text": "Sony"
+      }
+    ]
+  }, 
+  {
+    "tier": 3844, 
+    "text": "What wants Cameron prohibit in case of riots?", 
+    "answers": [
+      {
+        "text": "Blackberries"
+      }, 
+      {
+        "text": "social media", 
+        "right": true
+      }, 
+      {
+        "text": "Internet"
+      }, 
+      {
+        "text": "GSM phones"
+      }
+    ]
+  }, 
+  {
+    "tier": 5555, 
+    "text": "For whom Paypal accepts payments?", 
+    "answers": [
+      {
+        "text": "Wikileaks"
+      }, 
+      {
+        "text": "Cuban Cigars"
+      }, 
+      {
+        "text": "Ku Klux Klan", 
+        "right": true
+      }, 
+      {
+        "text": "Bradley Manning support fund"
+      }
+    ]
+  }, 
+  {
+    "tier": 7531, 
+    "text": "What vendor/project did not violate the GPL?", 
+    "answers": [
+      {
+        "text": "AVM"
+      }, 
+      {
+        "text": "VIM", 
+        "right": true
+      }, 
+      {
+        "text": "Fortinet"
+      }, 
+      {
+        "text": "Emacs"
+      }
+    ]
+  }
+]
\ No newline at end of file