The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

A man dies of old age on his 25 birthday. How is this possible?

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?