useless trivia: What Word Means: Endowed With Certain Abilities - Able-bodied?

Questions

What is the alternative name for the coastal plant the sea pink, which featured on the reverse of the old threepenny bit?

Which birds are the only ones to fly backwards?

Which physicist and former surveyor discovered the law which bears his name explaining the tension of a spring?

Which grammatical term is used to describe deliberate understatement?

Which bird has nostrils at the end of its beak?