I’m tall when I’m young, and I’m short when I’m old. What am I?

Which tank will fill first?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

I can turn polar bears white.
I can make anyone dance.
I can make everyone cry
I can make your hands clap
I can make you thin.
I can make you smile.
I can make you smile

Can you guess the riddle?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

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

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

What do you get if you add 2 to 100 four times?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?