What is both possible and impossible at the same time?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

At the local model boat club, four friends were talking about their boats.

There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.

Alan didn't have a yellow boat. Brian didn't have a red boat but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.

Can you work out which friend had which coloured boats?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

No one wants to have it, but if one got it, he does not want to lose it. What is It?