Do You See It?

Can you solve the maths in the below-given picture equation?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What am I?

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

You see me once in June, twice in November, and not at all in May. What am I?

Why is 6 afraid of 7?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

What does this mean?

CCCCCCC

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?