Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Which Burger Is Different in below image?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

What does this mathematical rebus means ?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

What has 88 keys?

Can you find a five letter word that is left with only two letters if one is removed?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?