15 September 2026
Sheet #15
The five rounds of 15 September 2026, with the real sizes and what each measurement covers.
- 01
Measured Diameter of a size 5 football
It must weigh between 410 and 450 g at kick-off.
- 02
ReferenceStreet lamppost8 m
To size upChild1.16 m
Measured Average height of a 6-year-old child
By age 6, a child has reached about two thirds of their adult height.
- 03
Measured Average height of an Easter Island moai
Many moai have full bodies, buried under the soil.
- 04
ReferenceStonehenge trilithon7.3 m
To size upRed fox1.05 m
Measured Length of a red fox, tail included
Its bushy tail doubles as a blanket when it sleeps.
- 05
ReferenceA4 sheet29.7 cm
To size upWoolly mammoth3 m
Measured Shoulder height of a male woolly mammoth
It was no bigger than a modern African elephant.