If eleven plus two equals one, what does nine plus five equal?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Can you name an animal whose killing cannot be performed without spilling your own blood?

What do you see in the image below

Three logicians went to bar for having a drink. The bar person asks the logicians "Do they all want to have the drink?". The first logician replied, " I don't know". The second logician replied, " I don't know". What is the reply of the last logician?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?