What you cannot hold but it is yours?

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

If six children and two dogs were under an umbrella, how come none of them got wet?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Six people park their car in an underground parking of a store. The store has six floors in all. Each one of them goes to a different floor. Simon stays in the lift for the longest. Sia gets out before Peter but after Tracy. The first one to get out is Harold. Debra leaves after Tracy who gets out on the third floor.

Can you find out who leaves the lift on which floor?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

what does this picture(rebus) riddle means ?

Why is 6 afraid of 7?