Multiple choice general knowledge sports What are the next 3 letters in this riddle? o t t f f s s _ _ _ infy acs e n t TCS Reveal answer Fill a bubble to check yourself C Correct answer Explanation The letters represent the sequence: One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten. So after 'o t t f f s s' come 'e n t' (Eight, Nine, Ten).