Give a chunk of the query log at a certain time and the corresponding chunk from pihole.log (using grep). The command should look like the one you used previously (either pihole.log or pihole.log.1 depending on the time of the query):
sudo cat /var/log/pihole.log | grep "11:40"
You can send this output to use in the same manner as the debug log is sent:
The amount and variety of those same-second queries is interesting, so we might find that that is a bug as well.