UnScramble this Word: p g n s i l a?

Questions

[science and technology] what is the name given to the short tail of a rabbit?

[science and technology] what pistol took its name from the person who patented it in 1835?

[science and technology] what name is given to a female swan?

[science and technology] who discovered x-rays in 1895?

[science and technology] granny smith, james grieve and egremont russet are all types of which fruit?