O_er_t_o_

Complete the missing letters of the given word.

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

A boy was driving a car, a girl took a lift from her. She asked his name. The boy said - my name is hidden in my car’s number, find it if you can. After this, she got down Car number was [ WV733N ] Can you guess the name now?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

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

How can a man go eight days without sleep?

Can you find the company name in the pictogram below?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

No matter how little or how much you use me, you change me every month. What am I?

What has one eye, but can’t see?