What does this rebus means ?

PROG WORKRESS

When monkey rotate the gear, which mark will be hit 1 or 2 ?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

I have Rs.50 and I spend it in the way as below.

Can you identify the hidden rebus in the image below?

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

What has a ring but no finger?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

In the image below, can you find the value of an angle(y)

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?