How many bananas can you eat if your stomach is empty?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

How many times can you subtract the number two from the number fifty?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Look at the picture and find out which square is not linked with any of the other squares.

You can see three almost identical images below. Can you spot the odd one out from them?