Can We Guess Your IQ?
Question 7 out of 10

7. Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she is twice as old as her brother?
Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she is twice as old as her brother? 32 25 24 18 16 ▶ Next Question ◀

How Carefree Are You?
How Carefree Are You?
Which Word Describes Your Current Emotional State?
Which Word Describes Your Current Emotional State?
What % Democrat Are You?
What % Democrat Are You?
How Much Do You Know About Egyptology?
How Much Do You Know About Egyptology?
Which 1960s Event Do You Identify With?
Which 1960s Event Do You Identify With?
Which “This Is Us” Character Are You?
Which “This Is Us” Character Are You?
Which Rune Are You?
Which Rune Are You?
What Fetish Do You Secretly Have?
What Fetish Do You Secretly Have?
How To Be Awesome?
How To Be Awesome?
What To Do On New Years Eve?
What To Do On New Years Eve?
European Capitals
European Capitals
What Is The Best Thing You Inherited From Your Ancestors?
What Is The Best Thing You Inherited From Your Ancestors?