Can you name some countries which do not have the alphabet 'A' in them?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Next Number in the Series,

5, 16, 49, 104, ?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

What is more useful when it is broken?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

What Adam and Eve do not have but the rest of the people have?