There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Our product and our sum always give the same answer. Who are we?

In the picture given below, can you find out which digit will take place of the question mark?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?