1The ancient artifact presented a riddle that archaeologists struggled to solve for decades.
2Can you explain the riddle of how the company managed to increase profits despite the economic downturn?
3The plot twist in the novel was a clever riddle that kept readers guessing until the very end.
4Try not to be too cryptic when posing a riddle, or your audience might lose interest.
5There is a riddle at the heart of the paradox, which challenges our conventional understanding of time and space.