When monkey rotate the gear, which mark will be hit 1 or 2 ?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

How many triangles are there in the picture below?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

How can you tell a raw egg from a hard-boiled egg?

Find the next number in the sequence

5 12 24 36 ?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Can you count the number of matches in the picture below ?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?