A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

How many times do a clock's hands overlap in a day ?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

I have an eye but still cannot see.

Who am I?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What is red and smells like blue paint?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

What does this rebus mean?

O
N
C
E
TIME

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?