Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What do you see in the image below

No one wants to have it, but if one got it, he does not want to lose it. What is It?

What is the next shape from answers A, B, C, and D figure?

A man plots the murder of his wife. His plan is full proof. Nobody saw them leaving their house. He stabbed her with a knife while driving. She died on the spot. He threw her body in a valley. He threw the knife carefully wiping his finger prints on a random garbage bin. Then he went back to his home and no one was watching him this time as well.

After an hour, he was called by the local police department who informed him that his wife was murdered. They asked him to reach the scene of crime immediately. But as soon as he arrived at the crime scene, he was arrested by them.

How did the police know that he himself is the murderer?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What kind of tree can you carry in your hand?

If it took eight men ten hours to build a wall, how long would it take four men to build it?