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Want the sixth grade logical reasoning olympiad problem
Example 1

Three children, A, B and C, broke the glass while playing football. A said, "C did it." B said, "I didn't break the glass." C said, "B is broken." Only one of them lied. Who broke the glass?

[Thinking Navigation] If A is broken, then A lied, B told the truth, and C lied, then both of them lied, which is contradictory. Only one person lied, so A did not break; If it is broken by B, then A is lying, B is lying and C is telling the truth, which is also wrong; Similarly, if C is broken, what does A say, what does B say, and what does C say. So the glass broke.

Drilling drilling:

(1) It is known that only one of the three people can drive. A said, "I can drive." B said, "I can't drive." C said, "A can't drive." If one of the three people is telling the truth, who will drive?

(2) A school investigates who has done good deeds. The teacher found three students, A, B, C and A said, "B did it." B said, "I didn't do it." C said, "I didn't do it." Only one of the three people told the truth. Who did this?

(3)ABCD Four children played football and broke the glass.

A said, "Is it C or D?" B said, "D is broken." C said, "I didn't break the glass." D said, "I didn't break it." Only one of them lied. Who broke the glass earlier?