🖼️❔

#placeholder #missing image #default image #unknown content #gray box #image not found #question mark square

❔⬜

#question mark square #unknown block #information block #help icon #mystery tile #abstract block

❓▪

#round square #question mark square #impossible shape query #geometry question #unknown shape #contradictory form

?⃞

#combining enclosing square #question mark square #literal question square #unicode symbol #enclosed question