I have eight fingers and two thumbs but I do not live. What Am I?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

I cannot talk, but I always reply when spoken to. What am I?

Can you spot the hidden girl in the picture below?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

What is the next number in the series?

15 29 56 108 208 ?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?