What is the next number in the series?

15 29 56 108 208 ?

What does this mean?

CCCCCCC

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

What brings you down but never up?

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?