Count the number of triangles in the picture below:

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

If 1+9+8=1, what is 2+8+9?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

It belongs to you, but other people use it more than you do. What is it?

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

There was a kingdom in which the king had no heir to take over his thrown. Even the queen was dead and he himself was on the verge of dying. He thought about it and then summoned all of the teenagers. He gave one seed each to all of them and asked them to grow the plant. He announced that the one with the most beautiful plant will become the king/queen of the empire after the death of the king.

After a month, all of them were called. The king looked at all of the plants but announced the girl with an empty pot as the queen of the empire. Why?

How can you make a TV, a bed, a dog, and a car liquid?