20. 30.
21. 28 years.
Arithmetical Puzzle.
The sum of four figures, in value will be
Above seven thousand, nine hundred and three;
But when they are halved, you’ll find very fair
The sum will be nothing, in truth I declare.
Answer to Arithmetical Puzzle.
The four figures are 8888, which, being divided by a line drawn through the middle, becomes
0000
0000