What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

What have one eye but still cannot see?

Can you decipher the below rebus?

PBLUESAISNUERSES

What is the relationship between these matchstick pictures below?

Below rebus represent famous DiCaprio movie. Can you name it?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?