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?

Move four matchsticks to the below square to form three squares?

Can you place six X (crosses) in below board without making three in a row in any way ?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Two old friends, Jack and Jill, meet after a long time, and discussing as:

Jack: Hey, how are you, man?

Bill: Not bad, got married and I have three kids now.

Jack: That's awesome. How old are they?

Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Jack: Cool..But I still don't know.

Bill: My eldest kid just started taking piano lessons.

Jack: Oh, now I get it.

How old are Bill's kids?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Katniss and Peeta are liars. They both lie on some specific days.

Katniss lies on Fridays, Saturdays and Sundays. She speaks the truth on all other days.

Peeta lies on Tuesdays, Wednesdays and Thursdays. He speaks the truth on all other days.

Can you tell that one day of the week when both of them will say "Tomorrow, I will lie."?