What does this rebus means ?

PROG WORKRESS

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

My location can be determined by the below rebus.
So where am i ?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?