Which tank will fill first?

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

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

What begins with T, ends with T, and has T in it?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

A man is sitting in a bar when a rich man sits next to him. He turns to the rich man and says, “Did you know I know almost every song that has ever existed?”

The rich man laughs. The man then says, “I bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it. The rich man laughs again and says, “OK, how about my daughter’s name, Jamie Armstrong-Miller?” Minutes later, the man collects his cash and the rich man goes home cashless. What song did the man sing?

Can you count the number of lines in the below picture?