A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Which word does the below Plexor means ?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?