Based on Icebreakers and Introductions [1]
Each person writes down four facts about himself or herself, one of which is not true. Each person takes turns reading his or her list aloud and the rest of the group writes down the one fact they think is not true. After everyone has read his or her list aloud, each person takes a turn reading his or her list, identifying the fact that is not true. Group members compare their written responses with the correct answers.
Links:
[1] http://www.reproline.jhu.edu/english/5tools/5icebreak/icebreak2.htm