I assume you mean a one-time shot of $2000 in the next 30 days instead of a way to earn $24,000 annually. In which case, you could bet $1000 correctly on red or black, or bet $56 correctly on any one roulette number. You could invest maybe $500 in a stock option you think will move one way or the other and quadruple your money if you're correct...or lose it all if you're wrong.
For a long-term payoff, you could use professional investing advice to turn $120,000 into $2,000 per month, assuming 20% returns.
I appreciate any suggestions! Thank you