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

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

A sundial has the fewest moving parts of any timepiece. Which has the most?

Take one out and scratch my head, I am now black but once was red. What am I?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

👉 I am a 7 letter word.
👉 I like mornings
👉 If you remove my 1st letter you can drink me
👉 If you remove my 1st & 2nd letters 👉 you may not like me
👉 If you remove my last letter, you will see me on television
👉Answer is really very interesting
Let us see who solves this....

By using 'because' continuously three times, can you make an English statement ?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?