A research question ideally should be able to answer a variety of questions and a research question is considered weak when it only focuses on one idea or topic.
Explanation: “Thou talk'st of nothing,” Romeo says to Mercutio in order to force Mercutio to end the Queen Mab speech (1.4. 96). Mercutio agrees, saying that dreams “are the children of an idle brain” (1.4. 98).