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

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

I have an eye but still cannot see.

Who am I?

Sharpest vision can find the lamp in the desert. Are you one of them? Test your observation skills now!

Do you see only foxes? It’s time for you to unlock the superpowers to find the baby squirrel hidden in the picture.

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Can you solve this picture maths equation?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

How can you take 2 from 5 and leave 4?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?