An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

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

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

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

What part of the chicken has the most feathers?

what does the below rebus mean?

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?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?