Prove that the below maths equation is true.

8 + 8 = 91

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Which alphabet letter is a question?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?