SB 10.45.35-36

sarvaṁ nara-vara-śreṣṭhau
 sarva-vidyā-pravartakau
sakṛn nigada-mātreṇa
 tau sañjagṛhatur nṛpa
aho-rātraiś catuḥ-ṣaṣṭyā
 saṁyattau tāvatīḥ kalāḥ
guru-dakṣiṇayācāryaṁ
 chandayām āsatur nṛpa
Synonyms: 
sarvam — everything; nara-vara — of first-class men; śreṣṭhau — the best; sarva — of all; vidyā — branches of knowledge; pravartakau — the initiators; sakṛt — once; nigada — being related; mātreṇa — simply; tau — They; sañjagṛhatuḥ — fully assimilated; nṛpa — O King (Parīkṣit); ahaḥ — in days; rātraiḥ — and nights; catuḥ-ṣaṣṭyā — sixty-four; saṁyattau — fixed in concentration; tāvatīḥ — that many; kalāḥ — arts; guru-dakṣiṇayā — with the traditional gift for the spiritual master before one leaves him; ācāryam — Their teacher; chandayām āsatuḥ — They satisfied; nṛpa — O King.
Translation: 
O King, those best of persons, Kṛṣṇa and Balarāma, being Themselves the original promulgators of all varieties of knowledge, could immediately assimilate each and every subject after hearing it explained just once. Thus with fixed concentration They learned the sixty-four arts and skills in as many days and nights. Thereafter, O King, They satisfied Their spiritual master by offering him guru-dakṣiṇā.
Purport: 

The following list comprises the sixty-four subjects mastered by Lord Kṛṣṇa and Lord Balarāma in sixty-four days. Additional information may be found in Śrīla Prabhupāda’s Kṛṣṇa, the Supreme Personality of Godhead.

The Lords learned (1) gītam, singing; (2) vādyam, playing on musical instruments; (3) nṛtyam, dancing; (4) nāṭyam, drama; (5) ālekhyam, painting; (6) viśeṣaka-cchedyam, painting the face and body with colored unguents and cosmetics; (7) taṇḍula-kusuma-bali-vikārāḥ, preparing auspicious designs on the floor with rice and flowers; (8) puṣpāstaraṇam, making a bed of flowers; (9) daśana-vasanāṅga-rāgāḥ, coloring one’s teeth, clothes and limbs; (10) maṇi-bhūmikā-karma, inlaying a floor with jewels; (11) śayyā-racanam, covering a bed; (12) udaka-vādyam, ringing waterpots; (13) udaka-ghātaḥ, splashing with water; (14) citra-yogāḥ, mixing colors; (15) mālya-grathana-vikalpāḥ, preparing wreaths; (16) śekharāpīḍa-yojanam, setting a helmet on the head; (17) nepathya-yogāḥ, putting on apparel in a dressing room; (18) karṇa-patra-bhaṅgāḥ, decorating the earlobe; (19) sugandha-yuktiḥ, applying aromatics; (20) bhūṣaṇa-yojanam, decorating with jewelry; (21) aindrajālam, jugglery; (22) kaucumāra-yogaḥ, the art of disguise; (23) hasta-lāghavam, sleight of hand; (24) citra-śākāpūpa-bhakṣya-vikāra-kriyaḥ, preparing varieties of salad, bread, cake and other delicious food; (25) pānaka-rasa-rāgāsava-yojanam, preparing palatable drinks and tinging draughts with red color; (26) sūcī-vāya-karma, needlework and weaving; (27) sūtra-krīḍā, making puppets dance by manipulating thin threads; (28) vīṇā-ḍamarukavādyāni, playing on a lute and a small x-shaped drum; (29) prahelikā, making and solving riddles; (29a) pratimālā, capping verses, or reciting poems verse for verse as a trial of memory or skill; (30) durvacaka-yogāḥ, uttering statements difficult for others to answer; (31) pustaka-vācanam, reciting books; and (32) nāṭikākhyāyikā-darśanam, enacting short plays and writing anecdotes.

Kṛṣṇa and Balarāma also learned (33) kāvya-samasyā-pūraṇam, solving enigmatic verses; (34) paṭṭikā-vetra-bāṇa-vikalpāḥ, making a bow from a strip of cloth and a stick; (35) tarku-karma, spinning with a spindle; (36) takṣaṇam, carpentry; (37) vāstu-vidyā, architecture; (38) raupya-ratna-parīkṣā, testing silver and jewels; (39) dhātu-vādaḥ, metallurgy; (40) maṇi-rāga-jñānam, tinging jewels with various colors; (41) ākara-jñānam, mineralogy; (42) vṛkṣāyur-veda-yogāḥ, herbal medicine; (43) meṣa-kukkuṭa-lāvaka-yuddha-vidhiḥ, the art of training and engaging rams, cocks and quails in fighting; (44) śuka-śārikā-pralāpanam, knowledge of how to train male and female parrots to speak and to answer the questions of human beings; (45) utsādanam, healing a person with ointments; (46) keśa-mārjana-kauśalam, hairdressing; (47) akṣara-muṣṭikā-kathanam, telling what is written in a book without seeing it, and telling what is hidden in another’s fist; (48) mlecchita-kutarka-vikalpāḥ, fabricating barbarous or foreign sophistry; (49) deśa-bhāṣā-jñānam, knowledge of provincial dialects; (50) puṣpa-śakaṭikā-nirmiti-jñānam, knowledge of how to build toy carts with flowers; (51) yantra-mātṛkā, composing magic squares, arrangements of numbers adding up to the same total in all directions; (52) dhāraṇa-mātṛkā, the use of amulets; (53) saṁvācyam, conversation; (54) mānasī-kāvya-kriyā, composing verses mentally; (55) kriyā-vikalpāḥ, designing a literary work or a medical remedy; (56) chalitaka-yogāḥ, building shrines; (57) abhidhāna-koṣa-cchando-jñānam, lexicography and the knowledge of poetic meters; (58) vastra-gopanam, disguising one kind of cloth to look like another; (59) dyūta-viśeṣam, knowledge of various forms of gambling; (so) ākarṣa-krīḍa, playing dice; (61) bālaka-krīḍanakam, playing with children’s toys; (62) vaināyikī vidyā, enforcing discipline by mystic power; (63) vaijayikī vidyā, gaining victory; and (64) vaitālikī vidyā, awakening one’s master with music at dawn.