bewilder

Verb

• cause to be confused emotionally

• be a mystery or bewildering to
  • This beats me!
    
  • Got me--I don't know the answer!
    
  • a vexing problem
    
  • This question really stuck me
    

Related words

• Synonyms: 
  bemuse , discombobulate , throw , perplex , vex , stick , get , puzzle , mystify , baffle , beat , pose