I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

What does below pictogram mean?

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

Which famous Hollywood movie name is hidden in the below rebus?

Can you fill the blank with the correct number?

6 30 870 756030 _____

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

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?