Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Can you solve the maths in the below-given picture equation?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

What building has the most stories?

You can see three almost identical images below. Can you spot the odd one out from them?