Because he didn't do anything worthy to claim the prize (see Hitler).
because he had rats in his mouth and eat lolly pops while rideing a bicicle
no
yes she has won many nobel peace prizes like jane addams won the peace prize in 1931 in fact she was the first american women to win the peace prize.
The panel of judges for each category annually review developments and new ideas published in order to select the recipients of the awards each year.
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