Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

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

In the image given, you can find several triangles. Can you count them all?

I’m tall when I’m young, and I’m short when I’m old. What am I?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

What can go up a chimney down, but can’t go down a chimney up?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

You see me once in June, twice in November, and not at all in May. What am I?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?