500 questions in 50 tests. Each test contains 10 questions.
run a risk of (something)
to be open to danger or loss
You run a risk of going to jail if you drive after drinking.
More Idioms ...
IQ Quiz - 23
Quantitative Aptitude - Surds & Indices - Questions - 01
Elementary English Grammar Test
Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)