Ans: American country music singer Doug Stone
Ques: "Why Did n't I Think of That" is a song written by Bob McDill and Paul Harrison, and recorded by American country music singer Doug Stone. The song reached the top of the Billboard Hot Country Singles & Tracks chart. It was released in June 1993 as the fourth and final single from his CD From the Heart.

Who sings why didn't i think of that?
CoT: The relevant sentence in the passage is: "Why Did n't I Think of That" is a song written by Bob McDill and Paul Harrison, and recorded by American country music singer Doug Stone.

Ans: Michelle Trachtenberg
Ques: Context: Inspector Gadget is a 1999 American action-comedy film directed by David Kellogg, written by Kerry Ehrin and Zak Penn from a story by Ehrin and Dana Olsen. It is loosely based on the 1983 animated cartoon series of the same name. It stars Matthew Broderick as the title character, along with Rupert Everett as Dr. Claw, Michelle Trachtenberg as Penny, and Dabney Coleman as Chief Quimby. Three new characters were introduced, Dr. Brenda Bradford (played by Joely Fisher), Mayor Wilson (played by Cheri Oteri) and the Gadgetmobile (voiced by D.L. Hughley). The film tells the story of how Inspector Gadget and Dr. Claw came to be in the cartoon.

Question: who played penny in inspector gadget the movie?
CoT: To answer the question, consider the following: It stars Matthew Broderick as the title character, along with Rupert Everett as Dr. Claw, Michelle Trachtenberg as Penny, and Dabney Coleman as Chief Quimby.

Ans: Some camper trailers use a fifth - wheel configuration , requiring the coupling to be installed in the bed of a pickup truck as a towing vehicle
Ques: The fifth-wheel coupling provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. Some camper trailers use a fifth-wheel configuration, requiring the coupling to be installed in the bed of a pickup truck as a towing vehicle, and "fifth wheel" is therefore sometimes used as a synonym for such campers in North America. The coupling consists of a kingpin, a 2-or-3 ⁄-inch-diameter (50.8 or 88.9 mm) vertical steel pin protruding from the bottom of the front of the semi-trailer, and a horseshoe-shaped coupling device called a fifth wheel on the rear of the towing vehicle.

Why is it called a 5th wheel trailer?
CoT: The relevant sentence in the passage is: Some camper trailers use a fifth-wheel configuration, requiring the coupling to be installed in the bed of a pickup truck as a towing vehicle, and "fifth wheel" is therefore sometimes used as a synonym for such campers in North America.

Ans: between 35 mmHg and 45 mmHg

Ques: P CO -- Partial pressure of carbon dioxide at sea level (765 mmHg) in arterial blood is between 35 mmHg and 45 mmHg.

Answer this question: the partial pressure of carbon dioxide in arterial blood is approximately?
CoT: This is the relevant information: P CO -- Partial pressure of carbon dioxide at sea level (765 mmHg) in arterial blood is between 35 mmHg and 45 mmHg.