15-step idea: $500/$1,000/$1,500/$2,500/$5,000/$7,500/$10,000/$15,000/$25,000/$50,000/$75,000/$100,000/$250,000/$500,000/$1,000,000
Yeah, it looks kinda "Mo'money", but it's slightly more risky and if the questions are gonna get harder, I think this might be appropriate. (Risking $20,000 to win $25,000 more)
12-step idea: $500/$1,000/$2,500/$5,000/$10,000/$15,000/$25,000/$50,000/$100,000/$250,000/$500,000/$1,000,000