Each prompt asks you to name something about Pella, Iowa. Type one answer and dive. The more obscure your correct answer, the deeper you sink. Everyone gets the same seven prompts today, and your first dive is the one that counts.
Spelling is forgiving, nicknames and short forms usually work, and a rejected answer is not the end: try another before the clock runs out. Every answer links to a public source. Nothing you type leaves your browser.