Showing what's behind the curtain

Find the number of factors in an enormous factorial.

Project Euler 183: Find the maximum product of equal parts of a number and determine whether the that product is a terminating or non-terminating decimal .

Find the expected number of plates that must be observed to find two that total 1,000.

Modified Fibonacci golden nuggets

Rooms of Doom

Count the number of horizontal, vertical and diagonal rectangles in a rectangular grid

Determine if the origin is contained inside a triangle.

Find the smallest member of the longest amicable chain

Find a set of terms that produce longest set of consecutive digits

Find the largest square number formed by pairs of encoded anagrams.