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Using the new operator $\oplus$, can you solve this equation?

Can you find a way of representing these arrangements of balls?

Alice and Brian are snails who live on a wall and can only travel along the cracks. Alice wants to go to see Brian. How far is the shortest route along the cracks? Is there more than one way to go?

Can you make a 3×3 cube with these shapes made from small cubes?

Can you cut a regular hexagon into two pieces to make a parallelogram? Try cutting it into three pieces to make a rhombus!

Weekly Problem 49 - 2013
What is the value of 2000 + 1999 × 2000?

What is 50% of 2007 plus 2007% of 50?