Which Lewis Carroll character says, "Contrariwise, if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic"?

Which continent did Christopher Columbus think he was sailing to when he set off in August 1492? On which continent would you find the iron-rich Mesabi Range? On which continent did the dinosaur Albertosaurus live? Around 1800, Lieven Bauwens set up a mechanized cotton-spinning mill in which Belgian city, where a famous treaty was s… Contrary to its name, which yellow mustard brand, introduced in 1904, is American? Contrary to popular belief, Humphrey Bogart never says "Play it again, Sam" in which 1942 film? Control of which Caribbean island was a central concern of the Spanish-American War? Controlling yellow fever greatly aided the completion of which large Central American project in 1914?