Tricky Bricky: Brain Teasers
Pixeland OU
Riddles - Just 500 Riddles
TLA Quiz n Button
Brain Test: Tricky Puzzles
Unico Studio
Brain Tricky Puzzle
Zego Global Publishing
Booklet - Puzzle games
Adapted Brain
Brain games for adults, logic
Nepturn Brain Games
Brain Story: Tricky Puzzle
ABIGLOBAL
Brain Test: Tricky Words
Brain Puzzle - Tricky Test
MetaMars
Brain Pocket: Tricky Puzzle
Bravestars Global Publishing