The Texas instrument that's lacking keys. No adding, multipliers, or parentheses. Subtract and divide, those are the choices. And there may be some unpleasant noises.

I’m pointy on top and huge at the base, Mummies used me as their hiding place. I’ve stood so long in the desert sun, Even your Wi-Fi’s not lasted that long.

I make deliveries no one requests, usually addressed to castle guests.

Six legs scuttling in the dark night. Five traps triggered out of sight. Four beetles scurry in different directions. Three tripped the trap's detection. Two antennae whirling in fright. One beetle made it out, then took flight! Why did the beetle flee the ancient pyramid? He was feeling...

Known for but not officially credited with its invention, by none other than Leonardo da Vinci. If you cut your finger with me, i'm a little more painful than pinchy.