John is the son of Jacob.
So,
Jacob is the_____of John's father?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Can you solve the below tricky visual equation?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

Forwards I am heavy, backward I am not. What am I?