Misc: How is the tree with the botanical name Fagus better known?

Questions

What organization's launch was FDR preparing to attend when he died?

What outfit merged with Time Warner in 1996 to form the world's largest entertainment company?

What part of an eatery do some restaurant owners call "the cancer ward"?

What percentage of Earth's circumference does the Great Wall span?

What river snakes through Germany, Austria, Slovakia, Hungary, Serbia, Romania, & Bulgaria?