BrainTwister #42: Persistence
Regulars
Puzzles
BrainTwister #41: There are three prisoners
Regulars
BrainTwister #40: There are four lights
Regulars
BrainTwister #39: Game of logic
Regulars
BrainTwister #38: Rotating dice
Regulars
BrainTwister #37: Digital multiplication
Regulars
BrainTwister #36: Prime generators
Regulars
BrainTwister #35: Cube cuts
Regulars
BrainTwister #34: Square dealing
Regulars
BrainTwister #33: Number triangles
Regulars
BrainTwister #32: Crossed out of order
Regulars
BrainTwister #31: Fold and cut
Regulars
