There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

How many times can you subtract the number two from the number fifty?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

What has one letter and starts with an E?

What does this mathematical rebus means ?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

There are a hundred statements.

First person says: At least one of the statements is false.

Second person says: At least two of the statements is false.

Third person says: At least three of the statements are false.

Fourth person says: At least four of the statements are false.

..

..

..

Hundredth person says: At least a hundred of the statements are false.

Analysing it, how many statements do you think are false and how many are true?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?