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

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

Why Wine Glass Stem is so long?

What does this rebus means ?

PROG WORKRESS

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

Give it food and it will live; give it water and it will die.

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

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