What question can you never answer yes to?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

What is the fastest way to double your money?

Which famous Hollywood movie name is hidden in the below rebus?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

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