What should come in place of '?' in the given

If O = 16, FOR = 42, then what is FROM equal to?

How many triangles are there in the given figure?

If Neelam says, “Anita's father Raj Is the only son of my father-in-law Sunil", then how is Kavita, who is the sister of Anita, related to Sunil?

Select the correct mirror image of the given figure when the mirror is placed at MN as shown below. 

Identify the figure that does NOT belong to the following series.

Which two mathematical signs should be interchanged to make the given equation correct?

15 × 3 ÷ 15 – (45 × 3) – 10 + (13 ÷ 2) = 76

In a certain code language,

A $ B means 'A is the daughter of B'.

A ∓ B means 'A is husband of B'.

Statement: 

No musician is an architect.

All cricketers are musicians.

All players are architects.

Conclusion: 

Select the set in which the numbers are related in the same way as are the numbers of the following sets.