What does this rebus riddle means ?

What does this rebus means ?

PROG WORKRESS

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

What number should come in place of the question mark below?

What does this rebus mean?

O
N
C
E
TIME

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

Why is it very easy to weigh a fish?

I am white when I am dirty, and black when I am clean. What am I?