I’m tall when I’m young, and I’m short when I’m old. What am I?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

Can you spot the man between the coffee bean in the picture below ?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Count the number of triangles in the given picture.

Can you guess the name of the month by looking the below rebus ?