John is the son of Jacob.
So,
Jacob is the_____of John's father?

How many bananas can you eat if your stomach is empty?

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?

Can you make a six-letter word using the letters N, A and B ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Below rebus represent famous DiCaprio movie. Can you name it?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?