Good Riddles

Question: There are 1600 people sitting around a circular table. The first person (person 1) has a sword and kills the second person then hands it to the next alive person (in this case person 3). Person 3 stabs person 4 and gives the sword to person 5. This goes on until person 1499 kills person 1500. Then person 1 kills person 3 and so on. This is repeated until there is only a single person remaining.

Who remains in the end?

Question: Nathan has math 4 times a week. If he has math 8:00 Monday, 9:20 on Tuesday, 10:40 on Wednesday, and 1:20 on Friday, when does Nathan have math on Thursday?

Question: Waking up I see a smile as warm as fire. Sleeping I see a gaze as cold as ice.

Question: A girl just learned how to drive.She was on the other side of the road and did not get a ticket. What was she doing?

Question: I am your most powerful weapon; I come before your eyes.. I help you seek the truth, yet I often give you lies. What am I?