What is full of holes but still holds water?

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

( ) + ( ) + ( ) = 30

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

I know a nine-letter word having only one vowel.
Do you ?

I have branches, but no fruit, trunk or leaves. What am I?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

What goes through cities and fields, but never moves?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?