Find the number of squares in the below-given picture.

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

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

O T T F F S S ?

In a certain bank, a man deposits a certain amount. According to the bank policies, the amount will be doubled up in a year but as the service charge, they will also deduct Rs. 65 by the end of every year.

If after the 6th year, the amount becomes 0, what do you think is the original amount he deposited in the bank?

When 99 is considered higher than 100?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

Find the next number in the sequence

5 12 24 36 ?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.