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

Which tank will fill first?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

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?

When does a USA Potato change its nationality?

With the help clues provided in the image, can you find the 5 digit key?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

Can you start the fire using two pieces of wood?