My first digit is an even number

64

No❌

My second digit is an odd number

I am termed to be the highest 2 digit number,
Who am I?

99

No❌

99 is not a square number

97

No❌

Answer is 81✅

Next one 🙂

I am the fundamental chemistry of existence, driving every heartbeat, breath, and thought.
​

​I am an invisible, perpetual balancing act of construction and demolition, operating relentlessly behind the scenes.
​

I dictate how efficiently resources are transformed, ensuring that what enters the system never remains in its original state.
​

Chemical reaction

No ❌

Without my continuous rhythm, stillness turns to decay, and power ceases to flow through the system I inhabit.
​

Metabolism

Yes ✅

Leaderboard

Admin Nana: 1
Adom: 1