I would have liked to have entered your charity quiz but the smallest amount I could have mailed to you from NZ is five pounds and that plus the postage has deterred me. I looked at your sample questions and may have solved some of them. Bath Bittern Bathsheba Brewer Butterfly Beech tree
My email is [email protected] and perhaps after the contest is over you may care to send me the other questions so I can have the fun of trying them.