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

Readers with excellent focus can find three differences between the camping scene pictures in 16 seconds. Can you? Test your eye power now!

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

A monk has a very specific ritual for climbing up the steps to the temple. First, he climbs up to the middle step and meditates for 1 minute. Then he climbs up 8 steps and faces east until he hears a bird singing. Then he walks down 12 steps and picks up a pebble. He takes one step up and tosses the pebble over his left shoulder. Now, he walks up the remaining steps three at a time which only takes him 9 paces. How many steps are there?

Kids with the most attentive eyes can spot a different watermelon in 4 seconds. Can you? Test your eyes now!

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

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

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?