What runs around the whole yard without moving?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

I am an odd number. Take away a letter and I become even. What number am I?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

Using Only Five 5's and any mathematical operator make sum as 37

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Find the value of "?" in the ball picture Riddle below: