Grade school math problem leaves people dumbfounded: Can you get the correct answer in 30 seconds?

Can you solve the elementary school problem that divided the internet in less than 30 seconds? Test your might in this ...
eLife

Nucleosome wrapping energy in CpG islands and the role of epigenetic base modifications

CpG density and epigenetic modification state modulate DNA mechanics, altering its intrinsic compatibility with nucleosome formation.
BBC

Primary Levels

Guardians: Defenders of Mathematica - WINTER UPDATE! Play the cracking Christmas update and use your maths skills to save the land. Meet the Karate Cats and practice spelling, grammar and punctuation ...