In which direction should the missing arrow point?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

What does this rebus picture identify?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?

What seven-letter word has hundreds of letters in it?

Who has married many women but was never married?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145