What is the word or phrase?

What word is pronounced the same if you take away four of its five letters?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

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

Can you write down eight eights so that they add up to one thousand?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Spot what is wrong here in below Picture?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

I cannot talk, but I always reply when spoken to. What am I?

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