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?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Why are all black people so quick ?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.