What you have answered here, what is waiting to come back, and every question in the topic.
Counted from your own answers, in this browser.
The same rule everywhere in the app, so nothing here can disagree with a session.
A question you get wrong comes back. It leaves the redo list once you have got it right three times running, and a wrong answer at any point puts it back to the beginning — because getting something right twice and then wrong is not knowing it.
The gap between sightings widens each time, which is what stops a session being the same handful of questions every day. Nothing is on a clock: the spacing counts study days, so a fortnight away costs you nothing.
The Highway Code and the sign library are free, need no account, and are the source these questions come from.
Nothing in the content yet records which rules cover which topic, so this page does not claim a mapping it cannot check. The search field above is the honest way across for now.