Which Burger Is Different in below image?

A blonde put eyeliner on her head. Why?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

What does a man do only once in his lifetime, but women do once a year after they are 29?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

What is the next number in this matchsticks series riddle?

Count the Triangle in the figure given below:

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?