13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Why is the longest human nose just 11 inches?

What has 13 hearts but no other organs?

Can you find the six hidden animals in the picture below?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

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?

What country can make you shiver?