Good Riddles

Question: Mr. Niceguy donated one million dollars to help feed starving people. After he donated the money he was a millionaire.

How did he become a millionaire?

Question: The 22nd and 24th Presidents had the same biological mother and father, but weren't brothers. They were both male, and were never female. Neither were adopted or "switched at birth". How is this possible?

Question: My memory is good, nay, more like perfect Yet I only remember two things.

Question: what can walk on 4 when they are born, walk on 2 legs when they are older and walk on 3 when they are old uncles and aunties?

Question: Tall as a tree, dressed in white, my bridal veil is shiny bright Up all night, never sleeping: if i rest, many are weeping. Upon the shores since the days of old, my silent message what am i?