Welcome to the thread, Blackforestangel!

That's tough to narrow down to just 5 for me but here's my list:

1. Crawling - this was the first ever song I've liked from them and why I listened to LP in the first place.
2. Numb
3. Shadow of the Day
4. Points of Authority
5. Leave Out All the Rest

6. Faint - worth noting because I really love this song

(And I just realized I like most of the songs on the Hybrid Theory, Meteora and Minutes to Midnight albums)