Why do people go to bed?

What is the coolest letter in the alphabet?

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

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

Why Aeroplane windows are round?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Katniss and Peeta are liars. They both lie on some specific days.

Katniss lies on Fridays, Saturdays and Sundays. She speaks the truth on all other days.

Peeta lies on Tuesdays, Wednesdays and Thursdays. He speaks the truth on all other days.

Can you tell that one day of the week when both of them will say "Tomorrow, I will lie."?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?