#12 What was the original depth of the water in the larger vase?

#9 A Rectangular Challenge

#8 What Is The Shaded Area Of A Baseball?

#6 What Is The Volume It Forms?

#5 What Is the Radius of the Smaller Circle?

#4 What's the Area of the Pentagon?

#3 What Is the Area on the xy-plane?

#1 Which Diagram Could Be the Right Sketch?

What’s the Height of the Red Bar?

What Does x¹⁰⁰ + y¹⁰⁰ = 1 Look Like?

A Very Very Tricky Oxford University Maths Question

What’s The Shaded Area?