When L and Soichiro are surveying the Yagami household L says. "When I was young I did strange things too", which indicated that he is considerably older than Light was at the time (17). However he is ...
In Death Note, Why did Ryuk use Sidoh's death-note rather than his own for dropping into human world?
In Death Note, people's eye and hair colour change when they are shown talking to themselves or thinking. Light changes to red colour, L to blue shade, Matsuda to yellow and Misa with lighter blue ...