If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

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

Do you know what I am?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

You are given 2 eggs.
You have access to a 100-storey building.
Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor, Both eggs are identical.
You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

The more of this there is, the less you see. What is it?

What do you see in the image below

What four weights can be used to balance from 1 to 30 pounds?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?