What is the riddle which can be asked all day with a different correct answer each time.

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

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

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

Find out the missing number in the picture attached:

The more of this there is, the less you see. What is it?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Bay of Bengal is in which state?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

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?