What does this rebus means ?

PROG WORKRESS

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Can you tell a 3D object that has just two surfaces?

Can it be possible to build a house that has all its four walls facing towards the South?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

What part of the chicken has the most feathers?

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?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?