1. After hours of excogitations, she finally came up with a solution to the problem.
2. His excogitations on the meaning of life led him to write a philosophical treatise.
3. The excogitations of the brilliant scientist resulted in a groundbreaking discovery.
4. The committee spent hours in deep excogitations before reaching a decision.
5. Her excogitations on the subject revealed a new perspective that had not been considered before.
6. The excogitations of the detective led him to unravel the mystery behind the crime.
7. Through careful excogitations, he was able to devise a plan that would benefit everyone involved.
8. His excogitations on the topic were so thorough that he was able to present a comprehensive analysis.
9. The excogitations of the engineer resulted in a design that was both innovative and efficient.
10. The excogitations of the author gave depth and complexity to the characters in the novel.