Misc: In 1942 First American expeditionary force to land in ---------- (WW II).?

Questions

What supermarkets were founded by Sir John Cohen with the slogan 'Pile it high, sell it cheap'?

What colour is the stripe on a Canadian Mountie's dress pants?

What year was the Berlin Wall erected?

What was the name of the last Shah of Iran's secret police force?

What were there 368,000 of in 1961 and 2,295,000 of in 1981?