using four eights (8) and a one (1) and one mathematical symbol , create the number 100

I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?

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

Why is Saturday stronger than Monday?

Which Travels Faster? Solve below famous picture riddle:

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What can you see in the middle of March and April that you can never see in any other month?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?