In a group of 36 girls, each one can either stitch or weave or can do both. If 25 girls can stitch and 17 can stitch only, how many can weave only?

In a group of 24 children, each one plays cricket or hockey or both. If 16 play cricket and 12 play cricket only, find how many play hockey only.

All the people in a locality read the daily newspaper Indian Express or Hindustan Times or both. If 120 read Indian Express and 150 read Hindustan Times and 36 read both, find :

(i) how many people are there in the locality;

(ii) how many people read only Indian Express.

Which of the following is a finite set?

1. Set of all natural numbers greater than 500.
2. Set of all integers less than 5.
3. Set of all even prime numbers.
4. Set of all multiples of 3.