i need help.. are my answers to this question right ?

i need help>.. are my answers to this question right ?

a 6-sided die with unequal probabilities. The probability of rolling a "1" is twice that of rolling any other number. 

1-What is the probability of rolling a 1?

 1/6*1/6 = 1/36

2- What is the probability of rolling a number other than 1?

 1-1/36 = 35/36

3- What is the probability of rolling an odd number?

 1/6 *1/6 * 1/6 = 1/216