Find the number of squares in the below-given picture.

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Can you replace the question mark with the correct number in the below table sequence?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

What is the next number in this series?

4,12,84,3612....

Rectify the following equality 101 - 102 = 1 by moving just one digit.