Name The Year: Robespierre and 22 other terrorists executed to thunderous cheers.?

Questions

Which six letter word contains no vowels?

Who said "If you can lie on the floor without holding on you're not really drunk?

Which vegetable, relative of the cauliflower do we know by its italian name?

What lake was the victorian Sir Richard Burton the first to discover in Tanganyika?

Who performed the first heart transplant?