A binary ripple counter is designed to count $(0)_{10}$ to $(64)_{10}$. Which of the following is/are the number of flip-flops required to design the counter?

The negative edge triggered $J K$ flip-flop in the Figure has $J$ and $K$ inputs tied to Logic High and a square wave of 10 cycles/second is applied to its clock $(C)$ input. The frequency of the output $Q$ (in cycles/second) is $\_\_\_\_$ .

(rounded off to two decimal places)

The synchronous sequential circuit shown below works at a clock frequency of 1 GHz. The throughput, in Mbits/s, and the latency, in ns, respectively, are

A traffic signal cycles from GREEN to YELLOW, YELLOW to RED and RED to GREEN. In each cycle, GREEN is turned on for 70 seconds, YELLOW is turned on for 5 seconds and the RED is turned on for 75 seconds. This traffic light has to be implemented using a finite state machine (FSM). The only input to this FSM is a clock of 5 second period. The minimum number of flip-flops required to implement this FSM is _______.