Question : Simplify the following expression.
25 + 12 – 2 + (4 + 2)

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
13, 9, 5, 1, –3, –7, –11, ?

Question : Simplify the following expression.
12 + 2.5 + (1.5 of 4) – 2.6

Question : Directions: What will be the value of the following expression, if + and – are interchanged and × and ÷ are interchanged?
5 − 3 ÷ 4 + 6 × 2 = ?

Question : What is the value of $\frac{6}{13}[\frac{29}{12}+\frac{4}{18}(\frac{16}{12}+\frac{18}{9})–\frac{46}{15} \div \frac{23}{45}]$?