How many times in a given day, minutes and hour clock comes in a straight line ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

Give it food and it will live; give it water and it will die.

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

What came first, the chicken or the egg?

What has 88 keys?