Quizzical Combustioneers T-Shirts

'I'm sorry, but I don't know anything about external combustion engines.'

Critical Ethanol report

People on the train reading each other's books - only it's the same as their own.

Wordplay: Dilemma.

'If we had a bill of rights that got wronged, would it be right or wrong for a judge to right that wrong?'

Fuels paradise.

'You may choose either everlasting life or whatever is behind the curtain.'

Upside down question mark hanging from fishing line.

'Oh no! I've had tons wiped off my footprint.'

'This is the last time I get a truck with a think tank.'

'Of course these are false colors. The reds are really greens, the greens are reds, the blues are oranges and the oranges are blues.' 'Makes sense.'

The oil crisis.

"Does this bird make me look fat?"

An Alien whose spaceship has tun out of gas is about to meet a human with the same problem.

"Norman still runs on leaded petrol."

"It can also run on recycled cooking oil, but you have to be careful, as it has a severe peanut allergy."

"Are you listening to those bloody influencers again?"

"I hate it when the baby f**ks my face."

"If you have to ask, you can't understand the answer."

'Saw my first electric car today.'

Man Carves Question Mark.

The Art of Problem Solving

The radiocarbon dating technique.

The three bears complaining about their carbon.

"It's not that I don't fancy you, Brian, but if I have sex with you, I'll have to eat you, and there goes my diet!"

'Wait a sec! I'm a rocket scientist and I don't get it. . .'

Oil price.

"The Heretic" - Imitation log fire

"My other car has lower emissions."

Woke up an hour later, cavity filled, teeth cleaned. (woman has shot man with a tranquiliser dart).