What's the only room from which no one can enter or leave
What has one eye, but can’t see?
What numbers should go on the bottom line? 3 6 9 15 8 2 10 12 11 8 19 27 19 10 29 39 ? ? ? ?
If a wheel has 54 spokes, how many spaces are there between the spokes?
A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?
What is the word or phrase below? R | E | A | D
1 dollar = 100 cent = 10 cent x 10 cent = 1/10 dollar x 1/10 dollar = 1/100 dollar = 1 cent => 1 dollar = 1 cent solve this tricky problem?
How many times do a clock's hands overlap in a day ?
A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?
Make a sentence consisting of three words that have the whole alphabet.
Can you arrange four 9's and use at most 2 math symbols, to make the total 100?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.
