Problem: Who had a top ten U.K. hit in 1990 with Naked in the Rain
Answer: blue pearl

Problem: What phenomenon was discovered by Frenchman Joseph Fourier in 1824, reliably experimented on by Irishman John Tyndall in 1858, and first reported quantitatively by Swede Svante Arrhenius in 1896?
Answer: greenhouse effect

Problem: Which chocolates were advertised as having the less fattening centres
Answer: maltesers

Problem: The Jewish language Yiddish is based on which other language ?
Answer:
german