I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

You can see three almost identical images below. Can you spot the odd one out from them?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

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?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

It belongs to you, but other people use it more than you do. What is it?

Can you name an animal whose killing cannot be performed without spilling your own blood?