Inventive(jokes)!

(1)Tube well!
‘Why is it so hard to pump water from the newly sunk tube well?’, enquired the man.
‘It’s not my fault, sir. Here’s mostly heavy water underground’,
explained the plumber.

(2)Left in the cold!
A: You dropped him from the team. But why was he left out in the
cold?
B: It’s a lie!
A: You mean you didn’t drop him.
B: Yes, I did. But how could he be left out in the cold in summer?

(3)Inventive!
Guardian: How is my son doing?
Teacher: Nice! I’ve never seen such an inventive boy.
Guardian: What has he invented?
Teacher: What not? He’s invented all the excuses to avoid studies!