I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

What do you see in the given picture?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

Who can jump higher than a Mountain?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

Find the next number in the sequence

1, 2, 6, 21, 88, __?