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

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

What has one letter and starts with an E?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

Prove that the below maths equation is true.

8 + 8 = 91

What's the only room from which no one can enter or leave

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

People put me on the table and cut me but do not eat me. What am I?

Out of four images which one is the odd one out?

What does this Rebus Picture means ?