What is both possible and impossible at the same time?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

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 goes up but never comes down?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What jumps when it walks and sits when it stands?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

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

People make me, save me, change me, raise me. What am I?