Interesting questions which go unanswered

[George 1978]

Re: Interesting questions which go unanswered

Oh no you don't...

I was just going to say that!

[victorbrunswick]

Why does Grape Nuts have neither grapes nor nuts?

[Semi42]

Flammable and inflammable mean the same thing so why do the two words exist?

[Cartimand]

How do you remind yourself to buy Post-It notes?

[George 1978]

Flammable and inflammable mean the same thing so why do the two words exist?

It's a bit like the UK government and the BBC who both think that British and English mean the same thing.

[Semi42]

A pair of trousers, knickers, pants ....when there’s only one article of clothing

[Cartimand]

A pair of trousers, knickers, pants ....when there’s only one article of clothing

Ah! I might know this one.
The earliest form of trousers were known as Hose and, as the name suggests, were a pair of tubular (usually woollen) items that you would pull onto your legs and fasten them together at the top with a buckle of sorts and perhaps a codpiece.
By the end of the 16th century, the fashion for two separate hose had ended and the waist band and codpiece/fly became an integrated part of the garment. The practice of referring to it in the plural though persisted.