Bayer Leverkusen moved to the top of the Bundesliga with a 2-2 draw at Schalke.
Goals from Toni Kroos and Stefan Kiessling gave Leverkusen a two-goal lead at half-time but Schalke, who came from behind to snatch a point at home to Hamburg last weekend, repeated that feat with goals from Kevin Kuranyi and Vicente Sanchez.
"We collapsed at the back towards the end. We definitely gifted two points tonight," Leverkusen keeper Rene Adler told reporters after the game.
Aaron Hunt scored twice in the final 18 minutes as Werder Bremen came back from a two-goal deficit at Nurnberg to rescue a point.
Christian Eigler put Nurnberg ahead in the third minute and Albert Bunjaku made it 2-0 after 33 minutes. But Hunt struck in the 72nd minute and then two minutes into injury time, allowing Werder to extend their unbeaten streak to 17 games.
Borussia Monchengladbach twice came from behind before handing Hamburg their first loss of the season.
Piotr Trochowski gave Hamburg the lead in the 13th minute only to see Marco Reus equalise after 39 minutes. Ze Roberto re-established the advantage for the hosts in the 47th minute. But fellow Brazilian Dante levelled the game again in the 76th minute and Rob Friend gave Gladbach the victory with his goal eight minutes before the final whistle.
The future of Stuttgart coach Markus Babbel is looking a bit brighter after his side held Bayern Munich to a goalless draw. The 2007 champions ended a run of five consecutive defeats with a point against the 2008 league winners.
Bayern came closest to winning with Luca Toni shining in the second half, but Louis van Gaal's side could not find a winner despite their efforts.
Mainz fought back from a two-goal deficit and snatched a point five minutes from time at defending champions Wolfsburg. Obafemi Martins scored in the seventh and 20th minutes to give Wolfsburg a 2-0 lead but Chadli Amri struck in the 35th minute and Andreas Ivanschitz made it 2-2 shortly before the interval.
Zvjezdan Misimovic gave Wolfsburg the lead again after 64 minutes but Tim Hoogland equalised again for the promoted side Mainz in the 85th minute.
Jan Rosenthal's first-half goal was enough for Hannover to grab an away victory at Cologne as the guests welcomed back Germany goalkeeper Robert Enke. Rosenthal scored the game's only goal in the 37th minute as Hannover collected their first away win in four matches.