Misc: who wrote dionne warwick's 'walk on by' and 'say a little prayer'?

Questions

Germany's WW I allies were Austria-Hungary, Bulgaria, and ?

Germany's allies in WW II were Japan, Italy, Hungary, Bulgaria, Finland, Libya, and ?

He allowed the bugging of the Democratic Committee headquarters?

He is identified with the expression, 'Eureka'?

He led 900 followers in a mass suicide in 1979?