"He gave me logical and other math problems to think about," Perelman said.
Mr Putin has said he will not intervene in the row because he has too many other problems to think about.
Dr. Copeland, who teaches WOOT, describes the experience this way: It's fun to see what happens when you collect talent like that in one class and give them interesting problems to think about.
If Indian Point has problems and we need to evacuate the city, we're going to have bigger problems to think about".
These children are more likely to be depressed and experience other types of mental health problems, to think about or attempt suicide and to engage in more high-risk behaviours than their non-abused counterparts.
Children who are abused, neglected, exploited or experience violence are more likely to be depressed and experience other types of mental health problems, to think about or attempt suicide, to have more physical symptoms (both medically explained and unexplained), and to engage in more high-risk behaviours than their non-abused counterparts, the report finds.
Most people are too caught up in their own problems to think about yours and if they are, it is because they are insecure.
Hundreds of years of philosophical thinking came before your own examinations of the world and, learning about the ideas of other philosophers will raise new ideas, questions, and problems to think about.
One way to approach this problem is to think about the system we use to choose our leaders.
