June 08, 2018:            2. Crossing Numbers  / Pick's Law /  The Area of Rectangle /

June 15, 2018:            3 Sum of All Digits / Page Numbering / Digits Arrangement         

June 22, 2018:            4 Net of A Cube / Net of An Octahedron

June 29, 2018:             5 How Many Faces Are Painted / Greatest Value Not Attained / How Many Tiles Will It Cross

July 06, 2018              6 Number of Divisors / Number of Square Divisors / Last Digit    

July 13, 2018              7 How Many Ways to Walk / Hand Shakes  

July 20, 2018              8 Counting Lines / Counting Angles / Counting Points

July 27, 2018              9 Counting Triangles With Lines / Counting Triangles With Dots

August 03, 2018        10 Counting Rectangles With Lines / Counting Rectangles With Dots

August 10, 2018         11  Trailing Zeros / Factoring Tricks / Denesting Square Root

August 17, 2018         12 Frog Hop the Stairs / Diagonal and Angles of Convex Polygons                              

August 24, 2018         13 All Your Base / Number Separation  

August 31, 2018         14 The Balance Pan Problems / Rolling A Circle