Can you solve the below tricky visual equation?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

Which is the smallest number that you can write using all the vowels exactly once?

What is harder to catch the faster you run?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

What makes this number unique: 8,549,176,320?

'Ferrari driver' easily beats the 'force driver' in a two-car race. How did Indian newspapers truthfully report so to look as a 'force drive' had outdone the 'Ferrari driver'? Think!!!

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.