Can you make a six-letter word using the letters N, A and B ?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

What Deficiency does the below rebus represent?

VIT_MIN

Find out the missing number in the picture attached:

By what process could you make a 'Tea-Table' into food?

Can you place six X (crosses) in below board without making three in a row in any way ?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

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