Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Numbers
0
%
0
0
0
Back
Restart
Mary has four daughters, and each of her daughters has a brother — how many children does Mary have?
Five
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies