The One With The Nap Partners - S7-E6
Corrected entry: When Ross and Joey are auditioning for Monica's maid of honour, Rachel says she met Monica when they were 6 and she met Chandler when he was 25, but in other episodes it shows that they had been to thanksgiving dinners together when Chandler was in college with Ross. In another episode it also shows Chandler and Rachel making out at a party, so she had met him plenty of times before he was 25.
The One With The Nap Partners - S7-E6
Corrected entry: After Rachel shows Phoebe all the stuff she was saving for Monica's wedding, she leaves them on the couch, then Monica walks in and when she's gone all the stuff on the couch is gone too.
Correction: Phoebe holds all the items Rachel gives her in her hands, she does not put them on the sofa. When Monica comes in, the stuff in still in Phoebes hands. The next time we see Phoebe the stuff is gone but she had plenty of time to return it to the paper bag that Rachel placed on the floor earlier.
Correction: Rachel actually says 'became friends with Chandler when he was 25'. Before then they wouldn't have been friends, he was just her friend's brother's friend that she met a couple of times.