Find the missing letter in the last circle logically in the given below picture.

What has hands, but can’t clap?

I have Rs.50 and I spend it in the way as below.

who is silent in the parliament?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

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?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Which letter of the alphabet has the most water?

Spot what is wrong here in below Picture?

Spot 5 differences in two Christmas tree below: