Here is the quiz for Friday Feb 12. Questions from Jimmy C. Thanks mate

Fancy setting a session? 20 questions, preferably in PDF format please.
P.S did anyone spot the deliberate mistake last week? if not, here are the answers.
Here is a link to U3A ‘creative cameras’ FREE tutorials.
And a similar link to Digital Camera web site
Some interesting T+S snippets that may be of interest?
Transparent wood glass
Winter watch – big freeze 1963
Improved ‘mask’ after COVID
12 deadliest viruses on Earth
Some interesting T+S snippets that may be of interest?
Repairing 200 Pis for charity
3D metal printing using electrochemistry
TV detector vans in England