Who always enjoys poor health?

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

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

I don't get anymore wetter, no matter how much rain falls on me.

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?