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

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Can you find the key in the picture below?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

what does this below rebus represent identXQQQQQME

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

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

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?