1. Copy one handout for each pair of students, and cut the handouts in two.
2. Put the students into pairs, and distribute a half handout to each individual student.
3. Focus students' attention on the instructions and emphasise students must think logically to solve the nine riddles.
4. Allow students around five to ten minutes or until the conversation dies down to discuss the answers.
5. Finally, elicit responses from the students and give them the answers.