I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Why did the Girl throw the butter out of the window?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

Which Travels Faster? Solve below famous picture riddle:

What does an Island and the letter T have in common?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

What is both possible and impossible at the same time?

Why are televisions attracted to people?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?