As character names:

U+061F ARABIC QUESTION MARK character (؟)

As raw characters:

؟

As a string of HTML entities:

؟

Decoder output:

Byte number 1 is decimal 224, hex 0xE0, octal \340, binary 11100000
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 152, hex 0x98, octal \230, binary 10011000
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 159, hex 0x9F, octal \237, binary 10011111
This is continuation byte 2, expecting 0 more.

U+061F	ARABIC QUESTION MARK
	* also used with Thaana and Syriac in modern text
	x (question mark - 003F)
	x (reversed question mark - 2E2E)