Which is the first genetically modified tree planted

Calculate the simplified result of the following expression: 12 × 18 ÷ 3 + 36 of 3² ÷ 3

The value of {5 − 5 ÷ (10 − 12) × 8 + 9} × 3 + 5 + 5 × 5 ÷ 5 of 5 is:

(60 × 8 ÷ 10) × 5 = ?

110 ÷ 5.5 + (?)³ ÷ 12 = 20(2/3)

25% of {(5/18) × 2880 + 12² } = ?% of 590

60% of 250 + 14 × 10 - 210 = ?

[16 × 15 + 224 × 5] ÷ 5 = ? × 4

15 × 35 ÷7 + 60% of 300 =?

(2² × 5² ) + 4 × 6 = ? - √324

What will come in the place of question mark (?) in the given expression?

(70 × 8 ÷ 10) × 5 = ?