You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

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?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

Do you know who was buried in John's tomb?

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

When does a USA Potato change its nationality?

What is the next number in this matchsticks series riddle?