Make the 10 coin pyramid on the left look like the inverted pyramid on the right by moving only 3 coins.
Picture Riddles
40 Matchsticks
Below are 40 matchsticks arranged in a square grid.
What is the fewest number of matchsticks that need to be removed so that there are no squares (of any size) remaining?
Riddle Answer16 Isolation Rooms
A hospital has 16 isolation rooms. Each room has a patient with a different illness.
Patient in room 13 recovers and wants to say goodbye to each patient. The problem is that if he visits a patient twice, he becomes ill again.
How does he visit each patient only once and exit from room 4?
Riddle AnswerAdding up to 15
How can you place the numbers 1 through 9 in a 3×3 grid such that every row, column, and the two diagonals all add up to 15?
