Can you find out which number multiplied by itself will give the output as 12345678987654321?

What does below pictogram mean?

Which letter of the alphabet has the most water?

What has many keys but can’t open a single lock?

I am sure no one can have two things for dinner. what are they?

Today is a very icy and cold morning in Newcastle. Mr Shearer, an office bus driver arrived to pick up the employees from the last stop. Shearer suddenly remembers that he needs to pick a newly joined 4miles to the north. Mr Shearer lost his direction compass, a few minutes later Shearer is able to figure that he is moving in the correct direction i.e. north. How did Shearer know that he is moving in the correct direction?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

What came first, the chicken or the egg?

In the image below, can you find the value of an angle(y)