Yakshaprashna is an interpolation

This incident is known verbally as the Yakshaprashna. But it is an interpolation in Mahabharata. A few reasons.

Reason number 1 - Yudhishthira is told by Dharma the location in which he will spend the year of incognito in.

But later on asks Arjuna the exact same question. Even though supposedly Dharma (in the form of a Yaksha) already gave him the answer.

Reason number 2 - Maharatha archers, known as the Pandavas fail to hit a deer, and become exhausted.

 Why were their bones (limbs) sore with hunger, fatigue and thirst so easily, so soon? Karna said that Arjuna never gets tired in battle:

This prince of Kuru's line, this foremost of car-warriors, careers in battle, borne by his steeds white in hue. Perhaps he will despatch me to Yama's abode today. Know, however, that with Karna's death, these all will be exterminated. The two arms of this prince are never covered with sweat. They never tremble.

Source: http://www.sacred-texts.com/hin/m08/m08079.htm

Reason number 3 - Lack of cross references.

Only one reference http://www.sacred-texts.com/hin/m01/m01002.htm and it is also interpolated (later addition, not present in the original text).

When I heard that Dharma (the god of justice) having come under the form of a Yaksha had proposed certain questions to Yudhishthira then, O Sanjaya, I had no hope of success.

This quote is an interpolation too for various reasons.

1. There is not a possible way that Dhritarashtra would have known of this incident. 
1. The spectators of the incident were only the 5 pandavas and draupadi. 
1. No spies noticed them then, so how would Dhritarashtra know of this? 
2. It comes from a section with alot of interpolations like Duryodhana trying to capture Krishna the messenger of the Pandavas.

• Reason number 4 - Because in this incident Bhima claims that an attendant

Screenshot

Also why would the Pandavas (be exhausted) because they did not kill Karna, Sakuni and Dussasana a few years back? The statements of Bhima, Arjuna, Sahadeva do not make sense over here.

Reason number 5 - The need to use more than one arrow to kill a single deer.

Arrows means more than one arrow. Surely the Pandavas who are experienced in hunting would not need more than one arrow to kill a single deer.

Reason number 6 - Their was no name of the Brahmana who was doing a sacrifice.

Surely at least this Brahmana would have a name, but he was never given an identity by vaisampayan…

Reason number 7 - Several poor decisions are made by the characters 

1. Yudhishthira decided to send his brothers one by one instead of all of them going together to drink/collect water, they were all thirsty, so best to find it and drink it together.

Reason number 8 - The absence of Draupadi in this incident. She was with them through thick and thin in the twelve years of exile yet when it suddenly comes to the last incident of the last year then she is nowhere to be found? Interesting.

Maybe she disappeared from Vyasa's epic for a few minutes long enough for Yudhishthira to answer 124 questions of a celestial being who was hiding in a lake in north India, masquerading as a penguin.....