John was writing his first book. After saving the document, he locked his laptop with a password and mentioned some phrases for the hint box.

A friend of his tried opening his laptop but found out that it was password protected. Following is the hint that appeared.
1 mobile 3 books 2 roars 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches.

Can you help him in cracking the password?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

Name a key which is hardest to turn.

Can you find out the missing number in the grid?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Give it food and it will live; give it water and it will die.