John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30 for every bottle box he delivered without breaking it and he will be charged Rs.90 for every bottle box he broke. Jacob gave John 100 bottles-box to deliver. After delivery, Jacob paid John Rs.2400. How many bottles-box did John break?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

Who are the happiest people in IPL match?

What is both possible and impossible at the same time?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

The dirtier I get, the whiter I look. Who am I?