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

Do you know what I am?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

Why do we preferably have round manhole covers and not square ones?

When it's bad luck to meet a black cat?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

How many times can you subtract the number 5 from 25?

Can you count the number of matches in the picture below ?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?