Ballpark — April 15, 2026

Career Grand Slam titles won by Serena Williams

23 titles

Singles titles only.

Elements in the Periodic Table

118 elements

The last four were officially added in 2016.

Bones in an adult human body

206 bones

Many bones fuse together as we grow.

Teeth in a Great White Shark

300 teeth

They lose and replace thousands in a lifetime.

Minutes to hard-boil an egg at sea level

10 minutes

9-12 minutes is the sweet spot.