The question was: What is the height and length of the Hoover Dam? Well, as we all know, the answer is that the height is 726.4 ft (221.4 m) and the length is 1,244 ft (379 m).
Happily, I was the quickest to reply and won some goodies!! First up is the fantastic Draftsight Mouse Mat.
Secondly, we have the Draftsight T-Shirt, with printing on the front and back.
All in all, not to bad for answering a quick question on Facebook.