If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What do you call a fish without an eye?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

What is black when you buy it, red when you use it, and gray when you throw it away?

Can you solve below mathematical equation?

2^1234 - 2^1233

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

What jumps when it walks and sits when it stands?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?