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?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Find the missing number in the image below.

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?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

What can go up a chimney down, but can’t go down a chimney up?