In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

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?

What is harder to catch the faster you run?

What has one eye, but can’t see?

I can write cow in 13 letters.

Can You?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Why is it against the law for a man living in Delhi to be buried in Mumbai?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.