Why is it very easy to weigh a fish?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

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."?

What's the only room from which no one can enter or leave

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

What kind of tree can you carry in your hand?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?