A UK biscuit is the same as a US cookie.
I don't remember anything being a cookie, but then with my diminished brain cells, who knows what was what over 40 years ago. I notice in the shops these days you can buy both biscuits & cookies. Must be the American influence
To me, "cooookie" is probably some one who sits up half the night playing a certain game
Scones are eaten in England, usually for afternoon tea - a meal with tea and biscuits, according to Julie Andrews, and she should know, she sang the song - but scones are sweeter than biscuits and can have currants or raisins added
Now I'm hungry
Who's house are we going to for tea?
Or should we have elevenses ????? It's that time of day

Mrs. Annie Purple Hat