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?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

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

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

How can you tell a raw egg from a hard-boiled egg?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

I am an odd number. Take away a letter and I become even. What number am I?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

In which direction should the missing arrow point?