Can you name some countries which do not have the alphabet 'A' in them?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

What has 88 keys?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

I taste better than I can smell. Who am I?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

I have eight fingers and two thumbs but I do not live. What Am I?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.