Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

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

why number 8549176320 is one of a kind?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

Who always enjoys poor health?

Can you count the number of lines in the below picture?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

O_er_t_o_

Complete the missing letters of the given word.