Count the number of triangles in the below picture?

What has lots of eyes, but can’t see?

What is the difference between a jeweller and a jailer?

What Adam and Eve do not have but the rest of the people have?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?