How many times can you subtract the number 5 from 25?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

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

A bomb exploded in a room full of married couples and no one died. How?

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask.

What is John Situation ?

I make two people out of one. What am I?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?