In this Post there will be some minecraft secrets/hidden stuff you may not know about yet.

1. Mushroom soup

You all know that mushroom soup can be crafted using work bench, bowl, red and brown mushrooms. But there is another way to obtain the soup, simply by 'milking' a Mooshroom (Right click the mooshroom with a bowl gives you Mushroom soup)

2. Music Discs

Music discs are hard to obtain/find in dungeons, but there is another way to get them. If a skeleton kills a creeper with his arrow, the creeper will mostly drop a golden or green record. (Chances of other records are small but realistic)

3. Breaking Cobwebs

Cobwebs are indicated you can break them with shears, but also any kind of sword will break the cobweb and drop a string when destroyed.

4. Beds

If you walk on a bed, it makes the sound of the block underneath it. Like if theres a wooden plank below, it will sound like you are walking on a plank while walking on the bed. (Thet can be placed above height limit)

5. End Portal

If you ride a minecart or boat into a end portal, it wont send you to the end (When you exit, it does)
If you manage to make a sand/gravel block fall into the end portal, it goes in the portal but dissappears (it wont be in the end or in the lava beneath)

Those where some secrets/hidden stuff i can think of right now, comment if you now some...