How many words can a pen with half refill write?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.