A half is a third of it. What is it?
Riddle AnswerMath Riddles
7 Thieves
There are seven thieves. They stole diamonds from a diamond merchant and ran away. While running, night sets in and they decide to rest in the jungle.
When everybody was sleeping, two of them woke up and decided to divide the diamonds equally among themselves. But when they divided the diamonds equally, one diamond is left.
So they woke up the 3rd thief and tried to divide the diamonds equally again but still one diamond was left. Then they woke up the 4th thief to divide the diamonds equally again, and again one diamond was left. This happened with the 5th and 6th thief – one diamond was still left.
Finally, they woke up the 7th thief and this time the diamonds were divided equally.
How many diamonds did they steal in total?
Riddle AnswerRed and Blue Marbles
Your friend has 100 red marbles, 100 blue marbles and 2 jars.
He proposes a game. He fills the jars with the marbles, put the two jars behind his back and tell you to pick one of them at random. You’ll then close your eyes, he’ll hand you the jar you picked, and you’ll pick a random marble from that jar.
You win if the marble you pick is blue, and you lose otherwise.
To give you the best shot at winning, your friend gives you the two jars before the game starts and says you can move the marbles around however you’d like, as long as all 200 marbles are in one of the 2 jars (that is, you can’t throw any marbles away).
How should you move the marbles around to give yourself the best chance of picking a blue marble?
Riddle AnswerSome People on a Train
There are some people on a train.
19 get off at the first stop. 17 get on. Now there are 63 people on the train.
How many were on the train to begin with?
Riddle Answer