What is the most alcoholic liquor in world?

It's impossible to definitively say what the most alcoholic liquor in the world is for a couple of reasons:

* Variations in ABV: The alcohol by volume (ABV) of many strong liquors can fluctuate depending on the producer, recipe, and even the batch.

* Limited Availability: Some of the strongest liquors are rare, artisanal, or even homemade, making it difficult to get accurate and widely accepted data.

However, here are some of the contenders for the title of most alcoholic liquor:

* Spirytus Rektyfikowany: This Polish spirit boasts an ABV of 96% (192 proof). It's essentially pure, concentrated alcohol and is not meant to be consumed straight.

* Everclear: While commonly associated with the US, Everclear is actually a brand of grain alcohol produced in multiple countries. It is available in 190 proof (95% ABV) and is highly potent.

* Bacardi 151: This rum from Puerto Rico clocks in at 75.5% ABV (151 proof). It's known for its high alcohol content and potent, fiery flavor.

* Bruichladdich X4+4: This single malt Scotch whisky is bottled at 100% ABV (200 proof). It's incredibly rare and expensive, due to its high proof and limited production.

Important Note: Consuming these ultra-high proof spirits is extremely dangerous. They are intended for specific uses, like making liqueurs or cocktails, and should never be consumed straight.

If you're looking for strong liquors, it's always best to choose reputable brands and check the ABV before consuming. Always drink responsibly and in moderation.