**Question 1:**
What is the next term in the following sequence: $1,3,5,\mathrm{7...}$
?

**Question 2:**
What is the next term in the following sequence: $12,15,18,\mathrm{21...}$
?

**Question 3:**
What is the next term in the following sequence: $19,13,7,\mathrm{1...}$
?

**Question 4:**
What is the next term in the following sequence: $1,\frac{1}{3},-\frac{1}{3}\mathrm{...}$
?

**Question 5:**
What is the next term in the following sequence: $2,4,8,16$
?

**Question 6:**
What is the next term in the following sequence: $2.7,4.1,\mathrm{5.5...}$
?

**Question 7:**
What is the next term in the following sequence: $1,\frac{1}{2},\frac{1}{4},\frac{1}{8}\mathrm{...}$
?

**Question 8:**
What are the first three terms of the sequence: $\frac{1}{2}n$
?

**Question 9:**
What are the first three terms of the sequence: $2n+1$
?

**Question 10:**
What are the first three terms of the sequence: $\left(n-1\right)\left(n+2\right)$
?