What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

What English word has three consecutive double letters?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

I look at you, you look at me, I raise my right, you raise your left. What am I?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

John was piloting a plane behind a car but was never able to overtake it. Why?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.