there are 74 instruction sets in the 8085 up which consist of 246 bit pattern.
There is no exit instruction in the 8085. Do you mean return, as in from a function or interrupt? If so, the instruction is RET.
Not in the 8085.
Timing diagram of instructions in 8085
No, SHLD does not affect the stackpointer in the 8085.
there are four types of instructions in 8085 microprocessor
MUL is not an 8085 instruction.
of 8085 instruction that manipulate data.
5 or more
The NOP instruction is a no-operation instruction. It does nothing to the state of the machine, except to use some time. In the case of the 8085, it uses four clock cycles plus however many wait states are need to access the NOP instruction from memory.