Websites that answer a single specific question

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BER - Berlin Brandenburg Airport

The first question touches a sore spot - Germany's most famous airport (BER). The construction project has been full of scandals involving mismanagement, patronage, bad planning, massive budget overrun and, of course, delay:

"Is the BER already open?" - though the answer is incorrect now

or

"Has the BER been finished yet?" with more sad details (German)

Friday?

This is an easy one:

"Is it Friday?" (Danish)

Traffic

The third site answers the question whether the avenue behind the Brandenburg Gate in Berlin is closed for traffic (which often is the case due to public events like marathon, turn of the year or national ceremonies):

"Is the 17th of June Street closed?" (German)

Tech

"Should I use threads?"

Transportation

The container ship Ever Given grounded in the Suez Canal completely blocking any traffic:

"Is that ship still stuck?"