What does it mean?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

What four weights can be used to balance from 1 to 30 pounds?

Count the number of balls in picture below:

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

Why despite killing dozens of people Charley and Wilma were not punished?

Replace the question mark with the number below given a simple math problem.

Can you find out which options fits best with the missing column?

Next Number in the Series,

5, 16, 49, 104, ?