Name a key which is hardest to turn.

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

Which point will the car reach to go out?

Why is the Hole below a Lock?

Why is a river so rich ?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

Next Number in the Series,

5, 16, 49, 104, ?