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

Can you solve the equation by finding the value of
A) Horse
B) Cowboy boot
C) Horseshoe

In the Picture?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Which letter of the alphabet has the most water?

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?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?