Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

A man was telling some of his war stories to his grandchildren.
"When the World War I was on the verge of end, I was awarded for my bravery for I had saved a group of my men." He coughed and then added, "When we were fighting in northern France, an enemy soldier threw a grenade at us. Before it could explode, I picked it up and threw it away. For my act of bravery, right before the war ended, A General gave me a sword engraved with the words "Awarded for Display of Bravery and Heroism in World War 1"."

Hearing this, one of the grandson spoke up. "Grandpa, this is not a true story. It can"t be true!"

The truth is that it was not. How did the grand children know it?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What do you think with the below Picture ?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

John needs to purchase 100 chocolates from three different shops and he has exactly 100 rupees to do that which he must spend entirely. He must buy at least 1 Chocolate from each shop.

The first shop is selling each chocolate at 5 paise, the second is selling at 1 rupee and the third is selling at 5 rupees.

How many chocolates should he buy from each shop?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?