Merry Christmas!
I'm not very creative so I tried to go for quantity over quality and made an entire bingo board of puzzles. Some of them are not very good so I decided you don't even need to solve all the puzzles — you just need to get a bingo! There is no hidden metapuzzle, there is no final answer (seriously). Super easy.
(All answers are SOWPODS-valid. Looking at source code is not part of the intended solve experience. Thanks to the various members of █████████████████████████████ for testsolving.)
| 1 ❌ | 2 ❌ | 3 ❌ | 4 ❌ | 5 ❌ |
| 6 ❌ | 7 ❌ | 8 ❌ | 9 ❌ | 10 ❌ |
| 11 ❌ | 12 ❌ | 13 ❌ | 14 ❌ | 15 ❌ |
| 16 ❌ | 17 ❌ | 18 ❌ | 19 ❌ | 20 ❌ |
| 21 ❌ | 22 ❌ | 23 ❌ | 24 ❌ | 25 ❌ |