Which flower has two lips?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

I add 5 to 9 and get 2. The answer is correct, so what am I?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

Can you divide the below-given shape into four equal and identical pieces?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

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?

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?