Trivia Advent Calendar

[Eva Elisabeth]

Since Gene, too, posted his take on #23b before my solution appeared, I'll give that point, but as for #23c, Roger needed one hint less, and the agreement didn't sound entirely "convinced" to me - I hope this is ok with you, Gene. If not (and you were sure and I misperceived), please let me know.
Joe 10
Laurie 8
Roger 8
Gene 7
Thomas 3
Rogerm 2