數學解謎: 智商測試
Math Puzzle Game Studio
Triviascapes: trivia & IQ test
Quiz & Trivia Games by Mno Go Apps
IQ Test Brain Training Riddles
Paul Stelzer
智商測試
Digerati.CZ
IQ Test
Aliaksandr Uvarau
NVQ Std
Tiawy
doubleR
Riddle Time: Tricky Riddles
Fun developer
IQ Test and Math IQ
Bigman Inc