This book offers interesting problems specializing in several topics of mathematical analysis: limits, series, and integrals. The problems in our book, are closely related with the mathematical constants such as pi, Napier constant e, Euler's constant Gamma, and the special function such as the Gamma function , the Zeta function zeta.Such problems are so attractive and interesting for students and scholars, who deal in mathematical and engineering. Detailed solutions of problems are all given.The level of the problems is appropriate for the undergraduate-level mathematical contests.This book is mainly addressed to undergraduate students with a strong background in mathematical analysis.We think that this book will be useful to mathematician and students interested in solving challenging mathematical problems.