One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

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?

The centre of the third figure is empty. What digit should fit inside?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

I’m orange, I wear a green hat and I sound like a parrot. What am I?

If an electric train is travelling south, then which way is the smoke going?