Knowing my interest in mathematics, a few weeks back, a very close friend of mine, Naveen Balakrishnan, asked me this on WhatsApp- "I've an A4 size paper and want to divide it into squares of at least 4cm or more in length with minimal wastage. Is there a mathematical way of solving this than a brute force? All squares should be of equal size" Instinctively after thinking for few minutes,...