Name a key which is hardest to turn.

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

how come the second man dies?

Jim has three close friends at his school: Michael, John and Alice. Two of them play football, two play basketball and two play hockey. The friend who does not play hockey does not play basketball as well. The friend who does not play football does not play hockey.

Can you identify which sport/s is played by which person?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

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

ST ND RD TH '?'

I have Rs.50 and I spend it in the way as below.

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?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?