The weight of a bucket full of water is 36 kg. If the weight of a half-filled bucket is 21 kg, what will be the weight of the empty bucket?

Direction : What should come in place of the question (?) in the following question.

916 ×?×3=214344

A tourist spends daily as many rupees as the number of days of his total tour. If his total expenses were ₹ 361, then how many days did his tour last? 

1008 divided by which single-digit number gives a perfect square?

The number of digits in the square root of 625686734489 is 

$$ {\sqrt{784}} × \sqrt{6.25} + 56\%\ of\ 450=?+186$$

The sum of two numbers is 29, the difference between the squares of those numbers is 145. There will be a difference of those numbers.

What is the square root of 0.09 ?