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?
Rectify the following equality 101 - 102 = 1 by moving just one digit.
Can you find out the remainder when 3^300 is divided by 5?
If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?
A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?
A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.
If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?
Can you solve below mathematical equation?
2^1234 - 2^1233
Find out the missing number in the picture attached:
A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?
An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
