Which of the following countries is the largest

(20% of 15% of 600 – 6) × 5 + 84 = ?² 

180 ÷ 3 of  2 = 102 – ?

The sum of two numbers is 16 and their product is 63. The sum of their reciprocal is equal to:

∛21952 × 44 = ? × 14

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

(√1089 + 84 ÷ 2) % of 348 = 416 - ?

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

{(16 × 25) ÷ 32} × 12 = ? – 200

13 X √? + 256 ÷ 4 = 30% of 900 - 50

1365 ÷ 15 + (? ÷ 5) = 6² × 3.5