A word I know has six letters it contains, remove one letter and 12 remain. What is it?

The centre of the third figure is empty. What digit should fit inside?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

How can you leave a room with two legs and return with six legs?

A dead body is found outside a multi-story multinational company. The case is reported and a homicide detective is called on the crime scene.

He looks at the body and then towards the building. From the position of the body, it is evident that the victim committed suicide. He goes to the first floor of the building and then walks in the direction of the dead body, opens the window and toss a coin in the air.

He goes to second floor and again repeats the process. He keeps doing this till he is done on all the floors. Then he returns back to the floor and tells his team that it is a murder.

How in heaven did he deduce that?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

What runs around the whole yard without moving?

Find the hidden tiger in the given optical illusion ?

Can it be possible to build a house that has all its four walls facing towards the South?