A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?
Decode below three cipher riddles: 26 L of the A 7 D of the W 1000 Y in a M
What is the next number in this matchsticks series riddle?
Can you spot the hidden girl in the picture below?
What kind of band never plays music?
Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal? Note: 9 cannot be turned over to make it 6.
I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?
Imagine you are in a room with no windows or doors. How will you get out?
Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"? ( ) + ( ) + ( ) = 30
I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?
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.
