Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

Count the number of triangles in the below picture?

What is more useful when it is broken?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Rectify the following equality 101 - 102 = 1 by moving just one digit.

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

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.