More idioms.Dec.28

I will tell you what the idiom means and you give me the idiom.
I will give you the first letter of the words in the answer.
Ex:A way of asking what someone is thinking.(a,p,f,y,t)
Answer: A penny for your thoughts.

-1.This idiom means 'to hear rumors' about something or someone.(h,i,o,t,g)

-2.Do or say something exactly right.(h,t,n,o,t,h)

-3.Actions or communications need more than one person.(i,t,t,t,t)

-4.Join a popular trend or activity.(j,o,t,b)

-5.This idiom means, to accomplish two different things at the same time.(k,t,b,w,o,s)

6.Meaning - do not disturb a situation as it is - since it would result in trouble or complications.(l,s,d,l)

-7.To share information that was previously concealed.(l,t,c,o,o,t,b)

8.Meaning: No manners.(n,a,s,o,d)

-9.Someone who lacks intelligence.(n,p,w,a,f,d)

-10.Crazy, demented, out of one's mind, in a confused or befuddled state of mind, senile.(o,o,r)

2. Hit the nail on the head - Hi Curly

Bernie

5. kill two birds with one stone

1. Hear it on the grapevine

https://www.youtube.com/watch?v=hajBdDM2qdg

10. Off One's Rocker?
Hi curly

Morning, good ones.

8. not a sense of decorum

Not my answer Joan but a good one, please try again.

3 - It takes two to tango

9. Not playing with a full deck

Morning curly,

7 - let the cat out of the bag

Morning, thanks.

4. jump on the bandwagon

Thanks mxm.

6. let sleeping dogs lie

8. Not a shred of decency?

8. Not a spark of decency

Thanks all. michele has the right answer.