There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

Which famous Hollywood movie name is hidden in the below rebus?

Can you count the number of lines in the below picture?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?