What happened when the wheel was invented?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

Can you solve the maths in the below-given picture equation?

A man dies of old age on his 25 birthday. How is this possible?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

How can you tell a raw egg from a hard-boiled egg?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.