What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

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

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Can you find the thief by just looking at the picture below?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

No matter how little or how much you use me, you change me every month. What am I?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

Find the 8 in the below-given Image.

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

John bought a new car. He has a habit of eating ice cream from a particular ice cream shop while returning home from office. Whenever, he eats strawberry ice cream, he faces no problem. But whenever, he eats chocolate ice cream, the car starts giving problem. At first, he thinks, it is just a co-incidence but when this awkward incident happens for 3-4 times, he reports this problem to the company.

The mechanic of the company checks but finds no problem at all. The next day, when he stops by to eat chocolate ice cream, the car again starts giving problem.

Can you find the possible reason?