I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Through your logical capabilities, can you make 7 an even?

Count the number of balls in picture below:

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?

What is both possible and impossible at the same time?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Take away the whole and some still remain. What is it?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

Give it food and it will live; give it water and it will die.

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?