Combining certain enchanted books on the anvil causes the second book to be erased.

Unable to combine enchanted books for a higher level enchant.

Creepers float one-eighth of a block above the ground.

Infected Baby Villagers have oversized heads compared to non-infected counter-parts.

Resizing the Minecraft window while dead grays out the Respawn/Exit to Menu buttons and several other screens

'Jump boost' effect negates forward momentum while under 'Speed' potion effect.