Questions

• The yellow color of urine is due to the presence of a yellow pigment, urochrome.
  
• The color of normal urine is usually light yellow to amber.

• Generally the greater the solute volume the deeper the color.

A segment of the financial market in which financial instruments with high liquidity and very short maturities are traded. The money market is used by participants as a means for borrowing and lending in the short term, from several days to just under a year. Money market securities consist of negotiable certificates of deposit (CDs), bankers acceptances, U.S. Treasury bills, commercial paper, municipal notes, federal funds and repurchase agreements (repos).

They walked and did this.

It was never specified that the boat was at sea. Since this logic is observed by them to tackle situation.

The puzzle's logic is

1st figure : (9-7) + (8-5) = 2 + 3 = 5

2nd figure : (15-6) + (11-2) = 9 + 9 = 18

similarly, 3rd figure : (9-6) + (17-5) = 3 + 12 = 15.