Title: Rosary
Content:  The Mysteries of the Rosary are meditations on episodes in the life and death of Jesus from the Annunciation to the Ascension and beyond. These are traditionally grouped by fives into themed sets known as the Joyful (or Joyous) Mysteries, the Sorrowful Mysteries, and the Glorious Mysteries. Pope John Paul II recommended an additional set called the Luminous Mysteries (or the "Mysteries of Light") in his apostolic letter Rosarium Virginis Mariae (October 2002). Typically, a spiritual goal known as a "fruit" is also assigned to each mystery. Below are listed from the appendix of Louis Marie de Montfort's book Secret of the Rosary for the original 15 mysteries, with other possible fruits being listed in other pamphlets bracketed:
Title: Rosary
Content: Joyful Mysteries ; 1) The Annunciation. Fruit of the Mystery: Humility ; 2) The Visitation. Fruit of the Mystery: Love of Neighbour ; 3) The Nativity. Fruit of the Mystery: Poverty, Detachment from the things of the world, Contempt of Riches, Love of the Poor ; 4) The Presentation of Jesus at the Temple. Fruit of the Mystery: Gift of Wisdom and Purity of mind and body (Obedience) ; 5) The Finding of Jesus in the Temple. Fruit of the Mystery: True Conversion (Piety, Joy of Finding Jesus) 
Title: Rosary
Content: Glorious Mysteries ; 1) The Resurrection. Fruit of the Mystery: Faith ; 2) The Ascension. Fruit of the Mystery: Hope, Desire to Ascend to Heaven ; 3) The Descent of the Holy Spirit. Fruit of the Mystery: Love of God, Holy Wisdom to know the truth and share it with everyone, Divine Charity, Worship of the Holy Spirit ; 4) The Assumption of Mary. Fruit of the Mystery: Union with Mary and True Devotion to Mary ; 5) The Coronation of the Virgin. Fruit of the Mystery: Perseverance and an Increase in Virtue (Trust in Mary's Intercession) 
Title: Rosary
Content:  The full Rosary consists of praying all 15 mysteries, with the Joyful, Sorrowful and Glorious considered the minimal amount. Alternatively, a single set of five mysteries can be prayed each day, according to the following convention:
Title: Rosary
Content:  II said that it is fitting that a new set of five be added, termed the Luminous Mysteries, bringing the total number of mysteries to 20. The Glorious mysteries are prayed on Sunday and Wednesday, the Joyful on Monday and Saturday, the Sorrowful on Tuesday and Friday, and the Luminous on Thursday. Usually five decades are recited in a session. Over more than four centuries, several popes have promoted the Rosary as part of the veneration of Mary in the Catholic Church, and consisting essentially in meditation on the life of Christ. The rosary also represents the Catholic emphasis on "participation in the life of Mary, whose focus was Christ", and the Mariological theme "to Christ through Mary". 
Title: Rosary-based prayers
Content:  The best known example of a rosary-based prayer is simply called the "Holy Rosary" and involves contemplation on five rosary mysteries, while Our Father, Hail Mary and Glory be to the Father prayers are recited. This rosary prayer goes back several centuries and there are differing views among experts on its exact history. In the sixteenth century, Pope Pius V established the current form of the original fifteen mysteries for this rosary and they remained so until the 20th century. Pope John Paul II extended the number of mysteries in this rosary during his reign, while keeping the original mysteries intact. Further prayers specified in the Roman Catholic tradition include: the Fátima prayers, the Litany of the Blessed Virgin Mary and the Memorare of Bernard of Clairvaux.
Title: Hail Mary
Content:  of Ave Maria. The 150 Ave Maria of the Rosary thus echo the 150 psalms. These Mysteries concern events of Jesus' life during his childhood (Joyful Mysteries), Passion (Sorrowful Mysteries), and from his Resurrection onwards (Glorious Mysteries). Another set, the Luminous Mysteries, is of comparatively recent origin, having been proposed by Pope John Paul II in 2002. Each decade of Ave Maria is preceded by the Our Father (Pater Noster or The Lord's Prayer) and followed by the Glory Be (Gloria Patri) (Doxology). The repetition of the fixed-language prayers assists recitation from the heart rather than the head. Pope Paul V said that "the Rosary is a treasure of graces ... even for those souls who pray without meditating, the simple act of taking the beads in hand to pray is already a remembrance of God – of the supernatural".
Title: Rosary
Content: Sorrowful Mysteries ; 1) The Agony in the Garden. Fruit of the Mystery: Sorrow for Sin, Uniformity with the Will of God ; 2) The Scourging at the Pillar. Fruit of the Mystery: Mortification (Purity) ; 3) The Crowning with Thorns. Fruit of the Mystery: Contempt of the World (Moral Courage) ; 4) The Carrying of the Cross. Fruit of the Mystery: Patience ; 5) The Crucifixion and Death of our Lord. Fruit of the Mystery: Perseverance in Faith, Grace for a Holy Death, Forgiveness. 
Title: Rosary
Content:  Father") and traditionally followed by one Glory Be. Some Catholics also choose to recite the "O my Jesus" prayer after the Glory Be, which is the most well-known of the seven Fátima prayers. During recitation of each set, thought is given to one of the Mysteries of the Rosary, which recall events in the lives of Jesus Christ and of Mary. Five decades are recited per rosary. Rosary beads are an aid towards saying these prayers in the proper sequence. Pope Pius V (in office 1566–1572) established a standard 15 Mysteries of the Rosary, based on long-standing custom. This groups the mysteries in three sets: the Joyful Mysteries, the Sorrowful Mysteries, and the Glorious Mysteries. In 2002 Pope John 
Title: Rosary Sonatas
Content:  The 15 Mysteries of the Rosary, practiced in the so-called “Rosary processions” since the 13th century, are meditations on important moments in the life of Christ and the Virgin Mary. During these processions, believers walked around a cycle of fifteen paintings and sculptures that were placed at specific points of a church or another building. In this tradition, at every point a series of prayers was to be recited and related to the beads on the rosary (this is the reason why they are also named the Rosary Sonatas). When they performed this ritual, the faithful also listened to the corresponding biblical passages and commentaries. According to Holman, it is presumed that at the time they would listen to Biber's musical commentary to accompany this ritual of meditation. Each sonata corresponds to one of the fifteen Mysteries and a Passacaglia for solo violin which closes the collection, possibly relating to the Feast of the Guardian Angel which, at the time, was a celebration that took place on different dates near those of the rosary processions in September and October.

Question: what are the joyful mysteries of the holy rosary?
Answer: The Nativity.
The Annunciation.
The Visitation.