Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Why do we preferably have round manhole covers and not square ones?

What is the word or phrase?

In the given picture, in how many ways can you read the word "Tiger"?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

By what process could you make a 'Tea-Table' into food?

Sherlock breaks into a crime scene. The victim is the owner who is slumped dead on a chair and have a bullet hole in his head. A gun lies on the floor and a cassette recorder is found on the table. On pressing the play button, Sherlock hears the message 'I have committed sins in my life and now I offer my soul to the great Lord' and followed a gunshot Sherlock smiles and informed the police that's its a murder.

Why did he think so?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

When is the top of a mountain similar to a savings account?

Find the smallest sentence with all the English alphabet.