System Design: Design a distributed message queue.
Low Level Design: Design a rate limiter.
Coding: From the two streams of very large numbers (not able to fit in int64 or float64), calculate the running sum and send the response over the third stream.
Puzzle: You have a set of 8 balls. 7 are of the same weight, and 1 is of different weight (may be lighter, may be heavier). Find the odd weight ball in minimum number of tries using a weighing scale.

Question

System Design: Design a distributed message queue. 
Low Level Design: Design a rate limiter. 
Coding: From the two streams of very large numbers (not able to fit in int64 or float64), calculate the running sum and send the response over the third stream. 
Puzzle: You have a set of 8 balls. 7 are of the same weight, and 1 is of different weight (may be lighter, may be heavier). Find the odd weight ball in minimum number of tries using a weighing scale.

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