Mathematics is considered as dry subject and students do not find anything interesting in it. This impression about Mathematics can be reversed with the help of recreational activities in Mathematics. The present study tries to find out the effectiveness of integrating riddles in teaching mathematics among eighth standard students. Two equivalent group experimental-designs are employed for this study. The investigator has chosen 40 eighth standard students for the study. According to the scoring of pre-test, 20 students were chosen as control group and 20 students were chosen as experimental group. Finally the investigator concludes; (a) There is a significant difference between the means of students thought through conventional method and puzzles and riddles way of learning group. (b) There is a significant difference between the means of the Post-Test scores of control group and experimental group students with respect to the knowledge, understanding and application objectives.