Watch: What is a question mark? Questions are sentences which ask something. When we write a question, we should put a question mark (?) at the end of the sentence. A question mark goes on the end ...

To solve this brain teaser, viewers will need to study ... Then add 48 to the last number before the question mark which ...

An online brain teaser, shared on Instagram's Threads, claims it is ‘only for geniuses.'.. It invites participants to guess the number by replacing a question mark. Are you confident in your ...