## Problem of the Week (12)

Donald draws ten mathematical objects that can be labelled from . He puts them into a natural sequence as follows:…

## Mathematical Proof

Title image: Euclid’s Elements Proving various results in math is arguably one of the most rewarding parts of doing it….

## Problem of the Week (11)

Solve the following equation: Happy problem solving! Email your solutions to [email protected]

## Problem of the Week (9)

The Mutilated Chessboard: We take a standard 8×8 chessboard, with 64 squares. Is it possible to cover this completely (tile…

## Problem of the Week (8)

AN OLD RIDDLE runs as follows. An explorer walks one mile due south, turns and walks one mile due east,…

## Problem of the Week (7)

A monk climbs a mountain. He starts at 8AM and reaches the summit at noon. He spends the night on…

## The Trivial Inequality

One of the most fundamental inequalities in math is the Trivial Inequality, which says: If x is a real number,…

## Problem of the Week (6)

There are three on/off switches on the ground floor of a building. Only one operates a single lightbulb on the…

## Warren Li: An Interview with an IMO Gold Medallist

Background: I had the privilege of ‘interviewing’ Warren Li OE, in which I asked him some questions about general math,…

## Problem of the Week (5)

Divide the following region into 4 congruent shapes (the shape is created by joining 3 congruent squares) (Credits to IMOmath)…

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