Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

John and Jill are madly in love with each other. To remind Jill of his pure love, John wants to send her a ring by post but in their country where burglary is quite prominent, any package that is not locked comes under the risk of being stolen for the contents.

John and Jill possess many padlocks but neither one of them has the other key.

Can you find a way John can send the ring to Jill safely?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Why is a river so rich ?

I can write cow in 13 letters.

Can You?