He was given the boon when he promised Satyavati's father that he wouldn't marry.

King Santunu got married twice. His first wife killed 7 of his 8 sons and his second wife, who was called Satyavati, rowed a boat on a lake.

Hope you didn't guess Ganesh. In fact, Ganesh agreed to write the Mahabharata on the condition that Vyasa would recite the Mahabharata without a break.

Before the war, Duryodhana and Arjuna came to Krishna to ask for help. Duryodhana came first, but saw that Krishna was asleep. He sat down on a couch near Krishna's head. Arjuna arrived and, seeing Krishna asleep, remained standing at Krishna's feet. When Krishna awoke he saw Arjuna first and greeted him. Then Duryodhana said that he had come before Arjuna and said that he wanted Krishna's help in the war. But Krishna said that he had seen Arjuna first and thus Arjuna had the right to ask first. Arjuna asked for Krishna himself to aid him in the war and that left the huge Narayani Sena for Duryodhana, who accepted it gladly.

This was one of the most cruel acts that Drona committed and he paid for it on the Kurukshetra battlefield.

Dhitarashta was born blind. When he got married, his wife Gandhari put on a blindfold to 'share her husband's world'.

Princess Amba was reborn as Shikandi. She had vowed to kill Bishma as the latter refused to marry her. Her sisters Ambika and Ambaalika married King Vichtraveerya.

Kunti was given a mantra to invoke Gods, who would grant her children by Sage Durvasa. She called upon Surya for Radheya, Yama for Yudhishtra, Vayu for Bheema, Indra for Arjuna. Maadri invoked the Asvini twins for Nakula and Sahadeva.

Karna learnt archery from a venerable sage by pretending to be a Brahmin. Who was this sage?

Parashurama hated Kshatriyas. Karna was his favorite pupil until he learnt the truth about Karna being a Kshatriya.

Barbareeck, Bheema's mighty grandson, was unable to participate in the war because he offered his severed head to his guru as 'guru dakshina' (fees). Who was his guru?

Krishna was the initial guide in Barbareeck's life. Barbareeck was invincible in war and had three arrows given to him by the Goddess Kamakhya. Using a single arrow, Barbareeck could wipe out all enemies in his sight. But Barbareeck had sworn to aid the weaker side in war. This posed a threat to the Pandavas itself because if Barbareeck wiped out a large portion of the Kaurava army on the first day of the war, they would be weakened and thus Barbareeck would be forced to join them due to his oath. So Krishna asked Barbareeck for his head as 'Guru Dakshina'. Barbareeck as a disciple was obliged to obey. Today Barbareeck is worshipped as a form of Krishna in Khatu, Rajasthan.

In the absence of a king a noble Brahmin was allowed to give an heir to the throne. Queen Ambika closed her eyes when she saw the Brahmin; hence Dirtharashtra was born blind. Queen Ambaalika became pale and weak when she saw the Brahmin, and hence Pandu was born anaemic. A charya Vidura was born to Queen Ambika's maid through Veda Vyaasa.

After the war was over, Ashwatthama attacked the Pandava camp during the night, killing Dhrishtadyumna (among others) in revenge.

Abhimanyu, the son of Arjuna and Subhadra, was murdered while trying to break into a vyuha (army formation). Which vyuha was it?

The Chakravyuha (circular formation) is an incredibly complicated vyuha. Drona arranged the Kaurava army in the Chakravyuha, just to baffle the Pandavas, since he had taken an oath that he would kill some important fighter in the Pandavas' side. Abhimanyu, who was asked to penetrate the vyuha, was caught in it and murdered unfairly.

Who was the oldest in the elder branch of the Kuru line, the son of Dhitarashta?

Duryodhan was the son of Dhitarashta and the oldest Kuru son, but Yuddhistir was older than Duryodhan, so he claimed the throne. Duryodhan was angered at this and asked for his uncle Shakuni's help.

Sanjay was telling Dhritarashtra about all the events on the battlefield. Dhritarashtra particularly wanted to know who started the war by shooting the first arrow. It was Dushasana

Purochana, the architect, built the "house of lac" in Varnavata. It was a plot to kill the Pandavas hatched by Duryodhana and Shakuni. Acharya Vidura saved the Pandavas.

Shakuni, the expert at the game of dice, was the brother of Gandhari and hence was King Ditharashtra's brother-in-law. He was the maternal uncle of the Kauravas.

Kunti had four sons: Yudhishtara, Bheema, Arjuna and Karna. The other two pandavas - Nakula and Sehdeva - were the sons of Pandu and Madri.

Karna wanted to prove that he was the best archer in the world, but he didn't have any royal descent -- so Duryodhana crowned him King of Anga and so he therefore had some royal heritage. However, after this, Queen Kunti saw his belt clip and she realised that Karna was the son that she had abandoned.

halya was the brother of Madri, the mother of Nakula and Sahadeva. He had been tricked into helping Duryodhana in the war but secretly promised the Pandavas that he would let no harm come to Arjuna when he fought against Karna as he would be Karna's charioteer. Thus, Karna was killed by Arjuna.

To whom does Yudhisthira offer the first worship at the time of the Rajasuya Yagna?

Shishupala opposes this decision of Yudhisthira and insults Krishna. This results in the death of Shishupala by Krishna.

Which great sage gave Kunti a boon that she could beget a son whenever she wished for one through the devas?

Sage Duruvasa was short in stature but incomparable in learning.He was a very short-tempered man. Kunti was a great devotee of his and hence he gave her the boon.

There is a common understanding that Bhishma was killed by Arjuna. This theory is also true. It was destined that Sikhandi should kill Bhishma. He shot the first arrow. Arjuna shot the subsequent arrows and killed Bhishma.

The deal was that the Pandavas spent 12 years in the forest in exile and then spent another year in hiding. This meant that they had to disguise themselves and work for a king. Also, if anybody found out that they were the Pandavas, they would have to restart the exile from the beginning.

Kamapilya was the capital of Panchala. It was Drupada's Kingdom. Drupada's daughter - Draupadi or Panchali - was the wife of the Pandavas.

Karna was Kunti's eldest born through Surya, the sun god. Without realising the consequences, Kunti playfully tried Sage Duruvasa's mantra when she was still unmarried. Karna was thus born. She had placed him in a wooden box and set it afloat on a river. A charioteer, Adhiratha, found the baby and called it by the pet name Radheya, meaning "son of Radha". (Radha was Karna's foster mother.)

Ved Vyasa was the son of Satyavati, daughter of a fisherman, and the wandering sage Parashara. He would go on to help write the Mahabharata.