Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

Can you move 2 matchsticks to form four equal sized squares.

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

I have branches, but no fruit, trunk or leaves. What am I?