I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

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

If 21x = 79x, what is the value of x?

Spot 5 differences in two Christmas tree below:

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

If it took eight men ten hours to build a wall, how long would it take four men to build it?