What has no start, end, or centre?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

There are forty elephants and they have forty-fore heads. How can this be possible?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

Who has married many women but was never married?

What is the next number in this matchsticks series riddle?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
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