Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Whats the next number in the below number sequence pattern.

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

Count the number of balls in picture below:

When can we add 2 to 11 and get 1 as the correct answer?

What goes through cities and fields, but never moves?

Name a key which is hardest to turn.

A woman shoots her husband.

Then she holds him under water for over 5 minutes.

Finally, she hangs him.

But 5 minutes later they both go out together and enjoy a wonderful dinner together.

How can this be?