A man dies of old age on his 25 birthday. How is this possible?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

What does below pictogram mean?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

The more of this there is, the less you see. What is it?

Can you find the six hidden animals in the picture below?