"The expression on your face, Watson, coupled with the sheet of foolscap in your hand, leads me to deduce that you are quite puzzled about something."
"Indeed I am, Holmes. Perhaps you can make head or tail of it; I have got nowhere so far. Here..."
"Thank you. Oh, this is quite clear. The answers to the questions at the bottom are..."
Here is the text on the sheet of foolscap; it is only the text that is relevant, not the handwriting, color, spacing, et cetera.
VALID WORDS INVALID WORDS BEAT STRIKE CYLINDER TUBE TICS TWITCHES BOGS MARSHES COPPER PENNY SILVER GOLD ALIASES NICKNAMES 1. IS 'VALID' A VALID OR INVALID WORD? 2. WHAT IS THE CRITERION FOR VALIDITY?