About number 18 Shlup: most remains never fossilize. Hell, even going for a walk in the woods and trying to find remains of any kind is difficult. Most break down or are consumed and destroyed by predators.

And as for 21: no one should be allowed to ask this without answering where god came from. And if the words "I don't know," "he always existed," etc. leave their lips ask why it's okay for God to spontaneously exist but not a Universe. It's one of the biggest cop out questions they have because the same burden of explanation doesn't seem to apply to their silly bull trout.

Fossil evidence is another cop out question from them as well to be honest. No matter how many intermediate evolutionary steps you find, there will always be more and they'll keep asking for it, ignoring the mountains of evidence accumulated in the mean time.