Keyboard words are not in alphabetical order, Why?

Can you find out the missing number in the grid?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

There is an ancient kingdom where every married woman keeps information regarding the fidelity of other men. However, what they don't know is the fidelity of their own husbands. Also, there is an ancient belief that they don't tell each other about the fidelity of their husbands.

On a certain day, the queen of the kingdom declares that she has identified at least one unfaithful man in the kingdom. She allows the wives to identify and gives them authority to kill their husbands if they are unfaithful at midnight.

How will the wives manage it?

If you say my name, I will no longer exist. What am I?