In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

Which is the smallest number that you can write using all the vowels exactly once?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Next Number in the Series,

5, 16, 49, 104, ?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

How many times in a given day, minutes and hour clock comes in a straight line ?