A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

How can you tell a raw egg from a hard-boiled egg?

Can you count the number of squares in the figure below?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

What can you deduce from the following BrainBat?

CRY
LMKI

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

What is the fastest way to double your money?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)