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

How many letters are in the alphabet?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

You need to remove two matchsticks to make the below equation true. Can you do it ?

Find the missing number in the sequence below:

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?