- Brain Training - The Daily Cranium IQ Quiz by Professor Puzzle.
- 365 brain teasing puzzles including Word Searches, Futoshiki, Battleships, Word Ladders, Sudoku, Binary Puzzles, Kakuro and many more!
- Daily challenge cards filled with brainteasers, puzzles & riddles. A different IQ workout each day of the year.
- Part of Professor Puzzle’s Brain Training collection - A collection of brain teasers / brain training activities.
- Ages 8+