A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

Find the next number in the series below

21 32 54 87 131 ?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

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

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What runs around the whole yard without moving?