If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

A father's child, a mother's child, yet no one's son.

Who am I?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Solve the mathematical equation in the picture below.

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Replace the question mark with the correct number below.

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

What has 13 hearts but no other organs?