How many triangles can you find in this given picture?

Rearrange the letters in "new door" to make one word.

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

Which of the below owl is odd one out?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

When 99 is considered higher than 100?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

What does this rebus riddle means ?