Pictures:

What do those who negotiate atomic non-proliferation treaties study?

Nuclear Medicine

2003

Which famous explorer invented the golf shirt?

Marco Polo

1600

What do you call a PhD in Mathematics?

An Add Executive.

1458

Do people enjoy recycling so many items?

Sort of.

1633

Which sea creature is stranger than a platypus?

An odder

188

Why do most adults stop enjoying puns once they get older?

They become groan-ups.

223

What happens when King Charles has a bad dream?

It's a royal nightmare.

1509

How did the "Closed" sign read at the smoke shop?

Close...but no cigar!

1792

What is happening here?

He's checking his bill for web service.

310

Why was this man being treated intervenously?

He had severe poison i.v.

884

What was the frustrated mother grateful for after trying to toilet train her toddler?

ICBM

332

How does appreciation show one's intelligence?

You're a great fool if your not grate ful.

2243