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?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Move four matchsticks to the below square to form three squares?

Can you place three balls such that the equation shown in the picture holds true?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Why is it very easy to weigh a fish?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

It is a 5 letter word if you take away first letter it is something you get from sun, if you remove second letter you will get something to eat, if you remove third letter you get a word you use in pointing at and if you remove the fourth letter you get something to drink. What is it?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)