By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

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

What is the Surname of Barbie Doll?

What is the next number in the series?

15 29 56 108 208 ?

The Judge knows that Alamgir was killed by his girlfriend Jasline, but the judge is unsure whether to punish her. Why?

Can you name an animal whose killing cannot be performed without spilling your own blood?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What building has the most stories?