which organization gives away the prizes?
The Nobel Foundation.
Formation of Foundation
According to the official sources, Alfred Nobel bequeathed from the shares 94% of his fortune to the Nobel Foundation that now forms the economic base of the Nobel Prize.
name the fields in which nobel prize is given Physics, Chemistry, Physiology or Medicine, Literature, and Peace. why is this prize given? To those who, during the preceding year, have conferred the greatest benefit to humankind
Nobel Foundation The Nobel Foundation The Nobel Foundation
Nobel Prize Nobel Prize Nobel Prize
History Formation of Foundation Formation of Foundation
The executors of the will, Ragnar Sohlman and Rudolf Lilljequist, formed the Nobel Foundation to take care of the fortune and to organise the awarding of prizes. The Nobel Foundation was founded as a private organization on 29 June 1900 
The Nobel Foundation was founded as a private organization on 29 June 1900. Its function is to manage the finances and administration of the Nobel Prizes.
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Nobel Prize [SEP] Formation of Foundation
According to his will and testament read in Stockholm on 30 December 1896, a foundation established by Alfred Nobel would reward those who serve humanity. The Nobel Prize was funded by Alfred Nobel's personal fortune. According to the official sources, Alfred Nobel bequeathed from the shares 94% of his fortune to the Nobel Foundation that now forms the economic base of the Nobel Prize. The Nobel Foundation was founded as a private organization on 29 June 1900. Its function is to manage the finances and administration of the Nobel Prizes. In accordance with Nobel's will, the primary task of the Foundation is to manage the fortune Nobel left.