Presents theories to explain questions for which there are no known answers, e.g. Can I live to be 150? Is ESP real? and Why do boys fight more than girls?
- ISBN10 0394952332
- ISBN13 9780394952338
- Publish Date 12 August 1982
- Publish Status Remaindered
- Out of Print 15 June 2011
- Publish Country US
- Imprint Random House Books for Young Readers
- Format Hardcover
- Pages 70
- Language English