Brainstorm
Sometimes the correct answer can not always be seen easily at first. But, if your patient and creative, sometimes a good idea for the correct answer will suddenly come to you. (Working in groups is very helpful for this strategy...two heads is better than one!)
Example: Ms. Oliver is very popular with the students at Alcott Elementary School. Along with her usual morning smile, she had a daily riddle. One of her favorite riddles is this one: How do 5 and 9 more make 2?