What is the next number in this matchsticks series riddle?

Solve this riddle by finding the odd one out from the rest.

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

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?

What is red and smells like blue paint?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

What Deficiency does the below rebus represent?

VIT_MIN

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

Can you count the number of squares in the figure below?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?