**Volume 5** ▶ Number 1 ▷ Number 2 ▷ Number 3 ▷ Number 4

**On the 97-th, the 98-th and 99-th Smarandache’s problems**

*Original research paper. Pages 89—93*

H. Aladjov and K. Atanassov

**On the 100-th, the 101-st and 102-nd Smarandache’s problems**

*Original research paper. Pages 94—96*

K. Atanassov

**On the 117-th Smarandache’s problem**

*Original research paper. Pages 97—98*

K. Atanassov

**On the 118-th Smarandache’s problem**

*Original research paper. Page 99*

K. Atanassov

**On the 62-nd Smarandache’s problem**

*Original research paper. Pages 100—101*

K. Atanassov

**Analyses of row expansions within the octic “chess” modular ring, Z _{8}**

*Original research paper. Pages 102—114*

J. Leyendekkers and A. Shannon

**A simple proof that the area of a Pythagorean triangle is square-free**

*Original research paper. Pages 115—118*

J. Leyendekkers and A. Shannon

**Five Smarandache conjectures on primes**

*Original research paper. Pages 119—120*

M. Perez

**Strong Bertrband’s postulate revisited**

*Original research paper. Pages 121—123*

L. Panaitopol

**On the 125-th Smarandache’s problem**

*Original research paper. Pages 124*

K. Atanassov

**Volume 5**▶ Number 1 ▷ Number 2 ▷ Number 3 ▷ Number 4