Off the top of my head I think it's episode 16-Confession because it's after Light meets Misa and has that talk about L and all that stuff. But I'm pretty sure it's 16 because I remember Light was still in college sitting next to Takada with Mogi sitting in the very back and Ryuk sitting right behind Light
Episode 37. Although there are rumors of a 38th episode.
I think it's episode 17 at around 13 minutes, 17 seconds. It continues in episode 18, which is really funny too.
The episode when L dies, 25
Assuming that you are referring to the large overly maniacal laugh that Light does when he is revealed to be Kira by Near, that is episode 37. Otherwise he laughs a little in almost every episode.
Light's father, Yagami Soichiro, dies at the end of episode 29, "Father" ("Chichioya").
pencil is older.
because a yellow pencil can only reflect yellow light and that yellow light is what you see from a yellow pencil.
No.
-SPOILER-Light Yagami dies in the very last episode/chapter of Death Note. He is shot several times by Matsuda but ultimately has a heart attack, caused by Ryuk.
That would be death note season 1 (volume 1) episode 18- Ally. You can but it on itunes for $1.99 i like your taste that is a pretty cool episode.
The Pencil lead
Yes, Light Yagami dies in the last episode of the Death Note anime. He was shot multiple times, then he ran off and died on a staircase of some random building...