What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

Find the last number in the series below:

voN luJ yaM raM ---

Move three sticks of the spiral below to form a square.

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?