What does this rebus mean?

O
N
C
E
TIME

Which wheel of car does not rotate when you turn your car right?

I know a nine-letter word having only one vowel.
Do you ?

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

Which letter of the alphabet has the most water?

What has 13 hearts but no other organs?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?