Fifty challenging problems in probability with solutions 
Mosteller, Frederick, 
 - New York :  Dover Publications,  1965 
 - viii, 88 p. :  ill. ;  22 cm. 
<br/><br/> Reprint. Originally published: Reading, MA : Addison-Wesley, 1965. Originally published in series: A-W series in introductory college mathematics. 
<br/><br/><label>ISBN: </label>0486653552 (pbk.)