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

Count the squares in the matchstick puzzle below?

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

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

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

What does this Rebus Picture mean?

How can you leave a room with two legs and return with six legs?