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?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

Prove that twice of ten is the same as twice of eleven.

Can you write down eight eights so that they add up to one thousand?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

Why do you find that most of the buildings are deprived of the 13th floor?

What is next number in the pattern below:

131 517 192 123 ?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.