If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

Can you count the number of triangles in the given figure?

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

Which tank will fill first?

What word does this rebus represent?

meta meta
meta meta

Can you count the number of triangles inside a triangle?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

I have feet, but no legs. Which animal Am I?