Which alphabet letter is a question?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

What's the only room from which no one can enter or leave

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

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

I’m tall when I’m young, and I’m short when I’m old. What am I?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15