You have a rope that will reach around the earth (+/- 40,000 km). If you put sticks of 1 meter high around the world and lay the rope on these sticks, how much longer will the rope need to be?
Riddle AnswerMath Riddles
Car Profit
John bought a used car for $600 and sold it to Mary for $800. He later bought it back for $1000 and resold it for $1200. How much profit did John make?
Riddle AnswerSend + More = Money
Each letter in the below equation stands for a different number, and each time the same letter appears, it is the same number. What is the only set of numbers that makes this equation correct?
SEND + MORE = MONEY
Riddle AnswerPool Balls – Sum of 30
You have 8 balls numbered 1, 3, 5, 7, 9, 11, 13 and 15. Select 3 balls and put them into the circles such that the sum of the numbers on them add up to 30.

10 Coin Pyramid
Make the 10 coin pyramid on the left look like the inverted pyramid on the right by moving only 3 coins.
