Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

In which direction should the missing arrow point?

What English word has three consecutive double letters?

What does a man do only once in his lifetime, but women do once a year after they are 29?

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

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