I have teeth but i don't bite. Who Am I ?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

Teacher ask the student

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

what did student replied ?

Can you solve the below geography rebus by decoding the below rebus ?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?

I taste better than I can smell. Who am I?

What does this mathematical rebus means ?

How can one talk without saying a single word?

How many triangles can you find in this given picture?