Before Mount Everest was discovered, what was the highest mountain in the world?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?

Using eight eights and addition only, can you make 1000?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

Complete the table series riddle by finding the number that can replace "??".

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

What does the below rebus riddle means?

What word is pronounced the same if you take away four of its five letters?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..