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?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

In the image below, can you find the value of an angle(y)

You can win me and lose me but never buy me
You can not eat me and never want to part with me
I can make you cry or bring you joy
I am not a machine and definitely not a toy
You keep me but i am not forever just yours
You might find me in a case or on a shelf next to a vase
I am hard and i am tall if you bump me i am sure to fall
I am made of different materials and am at many events
If your lucky and fight hard I might be yours
What am I ?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Why Wine Glass Stem is so long?

How many triangles are there on the puzzle below?

I have branches, but no fruit, trunk or leaves. What am I?