How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

Why is the Hole below a Lock?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Can you count the number of lines in the below picture?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?