To tackle difficult questions in the UPSC exam, candidates can adopt strategies such as skipping challenging questions initially to avoid wasting time, prioritizing easier ones. After answering familiar questions, they can return to tackle the harder ones with a clear mind. Time management is essential, so aspirants should allocate fixed time slots for each section. Employing methods like eliminating clearly wrong options can narrow down choices. Furthermore, regular practice with mock tests enables them to encounter diverse questions, enhancing their problem-solving skills and confidence in handling difficult queries.