Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What does the below mathematical rebus mean?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

How many Watermelons are there in the below picture?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?