Can you find the the mistake...?

Can you find the the mistake 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20?

You might also enjoy

Many of the jokes are contributions from our users. If you find anything offensive and against our policy please report it here with a link to the page. We will do everything to make this an enjoyable platform for everyone.