What does this rebus means ?

PROG WORKRESS

Count the number of triangles in the below picture?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Which country gets ill every time?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

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?

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

I can write cow in 13 letters.

Can You?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

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