What are blocks and procs?

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What is the difference between ruby 1.9 and ruby 2.0?

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Explain the types of variables available in ruby class?

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Explain the difference between a single quote and double quote?

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Can you call a private method outside a ruby class using its object?

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Explain the role of thread pooling in relation to the thread lifecycle in ruby?

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How symbol is different from variables?

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What is the difference between extend and include?

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Explain about the defined operator in ruby?

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How would you freeze an object in ruby? Can you provide a simple example?

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What does ruby name refers to?

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Explain when self.up and self.down method is used?

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Explain the role of modules and mixins in ruby?

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Explain the three levels of access control for ruby methods?

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What flask is and its benefits?

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