Only Smart People Can Solve These Tricky Logic Puzzles Without Looking At The Answer

Are you a puzzle expert? Test your brain power with this fun logic puzzle and see if you can solve it without looking at the solution!

Two Brothers, One Riddle:

When the boy turned 4, his younger brother was half his age. Try to figure out the youngest age of the first boy when the first boy turns 18. The rest is up to you!